32 'Hello world!' 32. answered Jan 24, 2013 at 2:21. Function like var_dump in php. Xây dựng chức năng đăng nhập và đăng ký với php và mysql Bảng mã ASCII chuẩn các hệ nhị phân - thập phân - thập lục phân Cách khai báo biến trong PHP, các loại biến thường gặp Bài 26: Hàm isset () và empty () trong php Các kiểu dữ liệu trong PHP và các loại. 変数の文字列表現を出力、または返します。. ここまで、 var_dump 関数、 print_r 関数、 var_export 関数のそれぞれの使い方と表示方法について解説をしました。. Because Excel is the finest format for storing data in a file, exporting data in Excel format is a very important tool that allows users to save data for offline use. The is_numeric() function is used to check whether a variable is numeric or not. I'm hoping they've dedicated a function and aren't copy pasting the extra logging around. Hot Network QuestionsThe solution for this was. However, it is inconvenient to work with the representation of var_export() in many ways, especially since that function was introduced in php 4. Edit: My bad, I thought of another way that you could do it. var_dump; var_export; PHP: is_numeric() function. 4. Khi var_export () xuất các đối. It's perfectly possible, just not generally wise to do so. In the above code, the file_put_contents () function look for a file named output. 5. HTML JavaScript Git CSS PHP. txt. echo と print は、ただ単に 文字列を出力する のに対し. This format is more readable and can fit in a single variable or in a hard . MySQL is free to download and use. 2. A variable name must start with a letter or the underscore character. Note: . If variable is array or object, this function returns keys and elements. The shorter syntax may be easier to read and takes up less space and is also more ubiquitous with JSON notation. Variables of type resource couldn't be exported by this function. 0. Executing this in the CLI, we get the expected result in our localhost machines and in two of the servers, but not in the 3rd one. 1. BrickVarExporter. Assuming you've just inserted a new node to your table that holds the actual nodes (longnames in the example above), the id of the new node is returned by LAST_INSERT_ID() in MySQL or else you can get it somehow. Look in the PHP Manual, example #2. var_export; var_dump; まとめ （var_dump, var_export, print_rの違い） 変数の中身を確認サクッと確認したいなら、var_exportが便利。出力をそのままPHPコードとして使い回すことができる。 値の型も確認したい場合はvar_dumpを使う。引数に変数を2つ同時に指定することも. php 5. Nếu bạn muốn làm một cái gì đó với sự biểu diễn đầy đủ của một mảng hoặc đối tượng, hãy sử dụng hàm serialize (). 0, lorsque var_export() exporte des objets, l'antislash initial n'est pas inclus dans l'espace de nom de la classe et ce, pour un maximum de compatibilité. If an object is converted to an object, it is not modified. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. LIBXML_DTDLOAD - Load external subset. Or, you can change the way you are parsing the text after it is printed to parse what var_dump() or var_export() gives you. ) as decimal point. You probably don't want to be re-writing your php code on the fly. brasofilo. 8ms). 2. Specifies options to be provided to the function, as an associative array. We create a. Mixed*. var_exportは、var_dumpに似ているのですが返される表現が有効なPHPコードとなるので、そのまま貼り付けても使える形式となります。 そして、var_dumpと異なり第二引数にtrueを指定することで出力させる代わりに戻り値として結果を返させることができます。var_export was a better solution in my experience as it wraps the array variable in quotes so handles better when using include/require to access the array values – Pete - iCalculator Sep 22, 2017 at 14:41The var_export () function has similarities with var_dump () because they both get structured information about variables. I don't claim this to be perfect, but it. You can export it by letting PHP write a file and then use source <file> in bash. var_export or serialize is what you're looking for. print_r(), var_dump() ve var_export() işlevleri nesnelerin protected ve private özelliklerini de gösterirler. It is particularly useful to store data that can be cached by OPCache, just like your source code, and later retrieved very fast, much faster than unserializing data using unserialize() or. Ask Question Asked 7 years, 4 months ago. Add a comment | 4 Answers Sorted by: Reset to default 1 seems like there are multiple objects in that obj. 0. What this means in practice is that var_export gives you valid PHP code (but may not give you quite as much information about the variable, especially if you're. It would be easier if you use var_export instead of print_r to output the array, var_export give output that can just be plugged into a sandbox,. The var_export () function outputs or returns structured information about a variable. Khi var_export (). This function works similar to var_dump (), except that the returned. Whether or not to omit the "args" index, and thus all the function/method arguments, to save memory. If you use fopen () on a file that does not exist, it will create it, given that the file is opened for writing (w) or appending (a). Modified 7 years, 4 months ago. It's best to avoid doing that wherever possible. Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand ; Advertising Reach developers & technologists worldwide; Labs The future of collective knowledge sharing; About the companyEver since day 1 of learning PHP, we have been taught to “start a PHP script with <?php and close it with ?>“. The fputcsv () function formats a line as CSV and writes it to an open file. php > var_export((int) "010"); 10 php > var_export(intval("010")); 10[2003-07-17 17:19 UTC] [email protected] and Usage. ini files I found Then clicking on export I get these errors as already stated above in this thread, and does not let export from within phpMyadmin:. PHP var export() Function - The function var_export() outputs or returns a parsable string representation of a variable. net closure can not be serialized. Often the variable name may not be the key you want to cache the value under, and often you'll restore it to a differently named variable anyway (as you do in your example). var_export. The var_export() is a built-in function in PHP which is used to return the structured value(information) of a variable that is passed to this function as a parameter. var_export will render a PHP parsable array syntax, and serialize will render a non-human readable but reversible "array to string" conversion. Checks whether the contents of a variable is an iterable value. MySQL is ideal for both small and large applications. ⇒ デモソースはこちら. PHP var_export() with short array syntax (square brackets) indented 4 spaces Raw. Example would be metadata like a global 'variables' table into which a systems plugins & modules can store their assorted settings. Show file. Arrow functions were introduced in PHP 7. It is similar to var_dump() with one exception: the returned representation is valid PHP code. This function is similar to the var_dump() function. There is no way for PHP to manipulate ENV vars outside of the runtime scope. asked Nov 11, 2016 at 15:19. This function works similar to var_dump() , except that the returned value for this function is valid PHP code. This cannot be changed with the allow parameter. You’ll learn how to use PHP and MySQL to export data to Excel. The difference between var_dump and var_export is that var_export returns a "parsable string representation of a variable" while var_dump simply dumps information about a variable. No installation is required to use these functions. php or whatever the . 取り上げるのは、print_r, var_dump, var_export の3つのメソッド です。. Here is a function that solves this:. Use serialize () on the variable, then save the string to a file. You may want to use the var_export() function over the var_dump() function. Share. Generates a storable representation of a value. This question is in a collective: a subcommunity defined by tags with relevant content and experts. Notes. Reading from the source it seems that if local_only is set to false (the default), the value. Update: I saw, that you posted an update. php; laravel; Share. PHP を使い始めて3ヶ月、未だに標準出力を雰囲気で使っているので、自戒も兼ねてまとめました。. It is particularly useful to store data that can be cached by OPCache, just like your source code, and later retrieved very fast, much faster than unserializing data using unserialize() or json_decode() . If the class name in the serialized string would have been 'X', like 'X::__set_state. 0. I would like to propose a little change in var_export function behavior. sesssion_start(); then. In clearer terms, the return value of var_export () function can be used in further. 0. func_get_args (): array. 4 (or, you know, a recent one) and implement the JsonSerializable interface. Description ¶. Since var_export() is designed to export a variable, it can only export a class instance. For example, if it is an invisible control character, or other hard to detect whitespace. how to read output of var_export into a variable in PHP? 0. Note: unserialize_callback_func directive. MySQL is a database system that runs on a server. php so i can use include to grab the array later. So as I understood, this method returns valid PHP-Code as a string. May be any scalar type. new. PHP concatanate variable name. *) } to array ($1) and eval the code, this is not so easy as written because You have to deal with matching brackets etc. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. PHP Calendar Functions. Note: The implode () function accept its parameters in either order. Print_r only shows the structures and approximate values (printable value). (useful in debugging) You can put this user-defined function at many places in your script. '; ?>'; ?> where $data is the output of. var_dump and var_export are useful functions for debugging PHP variables. 0, PHP 5) gets structured information about the given variable. Multiple vars assignment in one sentence in PHP. You can use var_dump() function to display structured information about variables/expressions, including its type and value, or you can use print_r() to display information about a variable in a way that's readable by humans. Introduction. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. 0) returns "1" instead of "1. how to read output of var_export into a variable in PHP? 0. Context is a set of options that can modify the behavior of a stream. （そのまま変数に代入することができます。. Yes, that is one way to output the value of a PHP variable in HTML. The headers_list () function returns a list of response headers to be sent to the browser. The third argument isn't necessary, however, I propose doing it this way to not break compatibility for existing people who are using var_export. 1. Both anonymous functions and arrow functions are implemented using the Closure class. PHP's var_export() function is a handy way to export a variable as executable PHP code. I am using PHP's var_export() function with the return string argument set to true. Return Value: Returns the converted string If the string contains invalid encoding, it will return an empty string, unless either the ENT_IGNORE or ENT_SUBSTITUTE flags are set: PHP Version: 4+ Changelog: PHP 5. I found that Warning: var_export does not handle circular references and was wondering if anyone knew of a way to test if a variable contains a circular reference so that I may use it before trying to use var_export on it. var_export() não lida com referência circular já que seria muito difícil gerar código PHP analisável para isto. change to feature request instead. intval allows specifying a different base as the second argument, whereas a straight cast operation does not, so using (int) will always treat a string as being in base 10. *Mixed : Mixed indicates that a parameter may accept multiple (but not necessarily all) types. UPDATE: Seems like I was wrong. x core/lib/Drupal. The var_dump () function is a built-in function of PHP that dumps the information about the variables. export variable to previous scope in PHP. end () - moves the internal pointer to, and outputs. 7k 15 15 gold badges 91 91 silver badges 181 181 bronze badges. Parses a string input for fields in CSV format and returns an array containing the fields read. Introduction The var_export () function is a built-in function in PHP that outputs a string representation of a variable or expression that can be used as PHP code. 9. which parses the variable content in a very pleasant manner, a lot more easier to "follow" than the built-in var_dump() function. print_r () and var_dump () are Array debugging functions used in PHP for debugging purpose. The var_export() function takes the array to be printed and the boolean value as the parameters just like in the print_r() function . Maybe you’re looking for var_export that will give you a valid PHP expression of the passed value. Aby W Aby W. PHP var export() Function - The function var_export() outputs or returns a parsable string representation of a variable. Value Type: Mixed*. php var_export() 函数的定义. PHP Variables. You can also use the var_export PHP function. This example decodes JSON data into a PHP associative array:Definition and Usage. 1. If you're planning on debugging with the data it helps to know if the data was part of a POST request or a GET request. Let’s see an example of how to write PHP array to a file. It puts a space after "array", so "array (" instead of "array (". 28. var_dump; var_export; PHP: strval() function. $_POST is also widely used to pass variables. Note : Pour être capable d'évaluer le PHP généré par var_export() , tous les objets analysés doivent implémenter la méthode magique __set_state . Must be greater than the longest line (in characters) in the CSV file. I have an array that I want to write to a file. All three PHP standard functions cause warnings with certain contexts: print_r & var_dump fail to handle mysqli objects with closed connections; var_export fails to handle recursion; Question. Add a Pull Request. PHP can create, open, read, write, delete, and close files on the server. It takes a variable as an argument and returns a string that is a syntactically correct PHP code representation of the variable, which can be used to recreate the original variable. PHP can collect form data. Ideally this should be a local variable, but environment variables are also welcome. The var_export() function in PHP is used to get the structured information for the specified variable. This file will be included in another script and the array read and processed. It would be better to use a format like JSON instead to store and read back values. var_export() does not handle circular references as it would be close to impossible to generate parsable PHP code for that. PHP readfile () Function. There are many guide about configuring NGINX with PHP FPM, but many of. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more. var_export. It also shows which array values and object properties. It is similar to the var_dump() function, but the output is valid PHP code. php', '<?php return '. to a php variable. php This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. return: Optional parameter, if used, returns the variable representation. Stack Overflow Public questions & answers; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Talent Build your employer brand ; Advertising Reach developers & technologists worldwide; Labs The future of collective knowledge sharing; About the companyExport MySQL Data To Excel in PHP. Notice makes sense, because APP_ENV is. As such, the static property simply does not belong there. Well if you insist to put the data into files, you might consider php functions serialize() and unserialize() and then put the data into files using file_put_contents. php. Can be either an array of class names which should be accepted, false to accept no classes, or true to accept all classes. var_dump therefore can "manage" the recursive nature of global by simply doing the following in the output &array(15) { ["GLOBALS"]=> *RECURSION* var_export on the other hand clearly can't take the same approach to recursion if the generated PHP output is to work as intended by the application designer. 2. 出力のフォーマットや情報量に差がありますが、print_rとvar_exportを覚えておくとよいとおもいます。 print_r関数 得られる情報量はおそらく3種の中で一番少ないですが、第二引数にtrueを付けることでダイレクトに出力せずにテキストとして取得すること. It would require using str_replace(). 0, когда функция var_export() экспортировала объекты, ведущий обратный слеш не добавлялся в имя класса с указанным пространством имён для наилучшей обратной совместимости. こちらも自動的に改行されないので、連続して複数の変数を出力する場合は. I thought I used this function a while ago for this purpose, but. Assume we have a text file called "webdictionary. I have this script Runing: Format var_export() PHP Script | WTOOLS Main code of the link: <?php #Class Initialization class Example { function foo_function() { return "Hello World!print_r() displays information about a variable in a way that's readable by humans. And FYI, if you're using a daemon service like supervisord they have their own settings to copy the env. 実はこの関数は基本的な. 0. With use of less-known var_export I also eliminated the need to implement output buffering to post-process the result. （そのまま変数に代入することができます。. In fact, even without APC the include is faster (11. The get_defined_vars () function returns all defined variables, as an array. a table that stores arbitrary 'session' data might be best implemented using a field that holds an associative array of keys/values. This function is similar to var_dump() except the returned representation is valid PHP code. 今回は、PHPでの開発・デバッグに役立つ出力系統の関数について解説していきます。. serialize and unserialize (which is the correct answer) take care of. Note: If the destination file already exists, it will be overwritten. PHP variable to array. Closest matches: var_export; svn_export; rnp_key_export_revocation; var_representation; rnp_import_keys; ldap_next_entry; variant_get_type; variant_set_type; socket_export_stream; rrd_xport; rnp_key_export_autocrypt; gmp_export; rnp_key_export;These are the top rated real world PHP examples of var_export extracted from open source projects. - Generates a storable representation of a value. . If you want to use the result in further functions, you can get a valid PHP expression as a string using var_export:. In other words, it returns something that is valid PHP source code to represent the value; if you paste that into a . PHP 7. Optional. var_export does not handle circular references. It can be used. 0. This function only affects interactive shells - it can be used to set or clear a closure when. A powerful and pretty replacement for PHP's var_export(). Definition and Usage. To capture the string representation of a variable, you can set the return parameter to true, as shown below: BÀI MỚI NHẤT. Note: This function only works on files uploaded via PHP's HTTP POST upload mechanism. Description: ------------ var_export () is documented as "Outputs or returns a parsable string representation of a variable" It generates an unparseable value for PHP_INT_MIN: it renders it as a negative decimal. This function works similar to var_dump() , except that the returned value for this function is valid PHP code. PHP 5. Serialize the array, then (over)write to file. var_export prints valid php code. 0, PHP 5) var_export -- Outputs or returns a parsable string representation of a variable. 1. 0, PHP 5, PHP 7, PHP 8) var_export — Imprime o devuelve una representación string de una variable analizableДо версии PHP 8. The effect of. The reason to use this component instead of serialize() or igbinary is performance: thanks to OPcache, the resulting code is significantly faster and more memory efficient than using unserialize() or igbinary_unserialize(). It is similar to var_dump() with one exception: the returned representation is (often) valid PHP code. If you want a nicer representation of any PHP variable (than just plain text), I suggest you try nice_r(); it prints out values plus relevant useful information (eg: properties and methods for objects). this code should get you the first sessionId in that obj. Tested with APC on PHP 5. Remove formatting of var_export() php. 您可以通過將函數的第二個參數設定為 TRUE ，從而返回變量的表示。. It is similar to var_export() with differences in indentation, string escaping, and array representations. The array printed by the var_export() function is a valid PHP code and can be excuted unlike the output genereated by the print_r() function. It's even easier to make this in bash like in the script shown above. d/file should have clear_env=no. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. var_export( variable, return) variable: The variable we want to export. 4 as a more concise syntax for anonymous functions. Type. . All of them are configured to work with utf-8. I wrote this JS function dump () to work like PHP's var_dump (). UTF-8, strings in one-byte encodings may be read wrongly by this function. If you want to do something with the full representation of an array or object, use serialize(). its very simple , you must save it as php file not txt and then. A valid constant name starts with a letter or underscore (no $ sign before the constant name). Note that in this case before PHP. To capture the string representation of a variable, you can set the return. Description: ----- var_export() does escape arraykeys properly, but doesn't use the same code for escaping properties. [2012-09-06 11:45 UTC] laruence@php. Basically, I don't want to store the exact values such as "SOMEDATABASE" OR 25. あまり使いませんが・・・. The data is in csv and I'm trying to convert it to usable information. Specifies how many decimals. Static class members will not be shown. var_export() does not handle circular references as it would be close to impossible to generate parsable PHP code for that. Flags can be used to permit or restrict what the buffer is able to do. These strings are internal. I have an array that I want to write to a file. Same variable name with different value. I am writing a program to automatically download data from a url. But where var_export () can return this information in a form that can be parsed by the PHP parser in computations, var_dump () cannot. 2. Introduction. Name: Format var_export() fullscreen exit fullscreen copy download embed printBe aware that iconv in PHP uses system implementations of locales and languages, what works under linux, normally doesn't in windows. To write a PHP array to a file, you need to call the file_put_contents () function in combination with the print_r () or var_export () function. 0. PHP 5. 4 array syntax. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. 0. var_export()：函数返回关于传递给该函数的变量的结构信息。 var_export() 函数与 var_dump() 函数类似，不同的是 var_export() 函数返回的是合法的php代码，也就是说它返回的值可以赋值给一个变量，而这个变量的值的类型与 var_export() 函数返回值. 4, or even already use version >= 5. print_r () and var_dump () are Array debugging functions used in PHP for debugging purpose. Pull Requests. 0" in all PHP versions Patches. If PHP is running in a SAPI such as Fast CGI, this function will always return the value of an environment variable set by the SAPI, even if putenv() has been used to set a local environment variable of the same name. This file will be included in another script and the array read and processed. Required: Mixed*Export a variable from PHP to shell. Here have 2 things, var_export always gives you the output with numeric keys and which is resolved by that package. txt. var_dump () is generally used as a tool for debugging, not as a data storage format; var_export () will give you the same format, but returning it as a string that can be stored rather than simply displaying it to screen. This will always print a value rather than printing nothing for null or false . I am using PHP's var_export() function with the return string argument set to true. var_export is much the same as var_dump, both functions create a representation of a given variable. Uses for PHP . As you write more programs in PHP, you will become more familiar with how Booleans work and how different functions and operations evaluating to either True or False can change the. You could serialize() or json_encode() it for starters, and then use unserialize() or json_decode() to import it back in. Alternatives to var_export. I would guess, that the problem is not related to this function but to the SQL-Query or code for storing the information. g Array (array_length) { [0] = string (1)'a'}. Not the output of the included script. Definition and Usage. Below is an example for showing some of many values and their variable-names in a table. Unlike var_export(), this works on any serializable PHP value. Useful if you calculated some values and want the results as a constant in another script. Indicates whether the header should replace a previous similar header or add a new header of the same type. PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. Share. However, I don't want to export the result verbatim because I want to apply this export to other 25 databases later. It is similar to var_dump() with one exception: the returned representation is valid PHP code. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more. PHP output styling. var_export provides the desired functionality. Use ob_get_clean () to get the output of var_dump () and from there you can start removing all unnecessary characters. data. print_r() - Prints human-readable information about a variable debug_zval_dump() - Dumps a string representation of an internal zval structure to output var_export() - Outputs or returns a parsable string representation of a variable W3Schools offers free online tutorials, references and exercises in all the major languages of the web. For today, this function returns string representation of array in old style with “array” keyword: var_export([]); // array(). However, most newbie tutorials only mention var_dump when they should be mentioning var_export as another possibility. 2. という構成で進めます。. 1. In this case, there is no need to use var_export . The money_format () function returns a string formatted as a currency string. ', you could have defined the '__set_state' method in 'X' and the. Augment the function of print_r with var_dump and var_export to show protected and private properties of the objects, including type and value. PHP var_dump () 函数 PHP 可用的函数 var_dump () 函数用于输出变量的相关信息。. However, because the output format of var_export() is depended upon in php's own unit tests, tests of PECL modules, and the behavior or unit tests of various applications written in PHP, changing var_export itself may be impractical. 0. When a user submits the data by clicking on "Submit", the form data is sent to the file. And now we have to live with it, because otherwise, existing unit tests with hardcoded var_export() comparison would fail. To serialize data means to convert a value to a sequence of bits, so that it can be stored in a file, a memory buffer, or transmitted across a network. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. The shorter syntax may be easier to read and takes up less space and is also more ubiquitous with JSON notation. cal_info () Returns information about a. This example is for newer PHP (>= 5. By default, in php -a, dump the results of non-null expressions using var_dump/var_export(). Please check the PHP Manual to understand about the var_export() function. Learn more about CollectivesW3Schools offers free online tutorials, references and exercises in all the major languages of the web. Required. Use ob_get_clean () to get the output of var_dump () and from there you can start removing all unnecessary characters. var_dump and var_export relate like this (from the manual) var_export() gets structured information about the given variable. Hot Network Questions Do the military really use GA planes as target practice? How to handle boss' team invitation to go to a bar, when my coworker is an alcoholic in recovery?. Using var_export BE AWARE This method is included because this is the answer to the question as asked; however, either of the other two methods is what you are actually looking for! Let's assume you have an array. Note that echo, var_export, and highlight_string are all php functions and need to be inside a <?php?> block. txt", stored on the server, that looks like this: The PHP code to read the file and write it to the output buffer is as follows (the readfile () function returns the number of bytes read on success):Definition and Usage. var_export (PHP 4 >= 4. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. We also discussed some trait-, class-, and function-related features. Note: HTML comments are always stripped. There are lots of questions and answers around the subject of valid php syntax from var outputs, what I am looking for is a quick and clean way of getting the output of. 2 or later recommended. var_export. (useful in debugging) You can put this user-defined function at many places in your script. ใน php programming มีฟังก์ชันมากมายที่ทำหน้าที่แสดงได้ผลลัพ์เพื่อช่วยในการ Debug code แต่หลายๆอาจจะยังสับสนกับฟังก์ชั่น var_dump() , var_export()และ print_r() ว่ามีความแตกต่าง. Definition and Usage The var_export () function outputs or returns structured information about a variable. var_export () không quản lý các tham chiếu vòng tròn vì không thể tạo mã PHP có thể phân tích cho loại dữ liệu này. , just a clue on how to find solution ;) this will be helpful if You cant change var_dump to var_export, or serialize. –Another well-known &convenient approach used in Unix systems is to make use of the "export" command. So, after suffle have to reset the keys to get the output without numeric keys. Again, it's code duplication or this—absolutely no way around it. variable: Required. 0. Version: (PHP 4 and above) Syntax: get_defined_vars() Return value: A multidimensional array with all the variables. If this parameter is used and set to true var_export () function returns the variable representation instead of outputting it. Paul Dixon. Stack Overflow is leveraging AI to summarize the most relevant questions and answers from the community, with the option to ask follow-up questions in a conversational format. Info and examples on var_export PHP FunctionThe very basic problem is that you're passing values into functions, not variables. 0. A variable can have a short name (like x and y) or a more descriptive name (age, carname, total_volume). It would be easier if you use var_export instead of print_r to output the array, var_export give output that can just be plugged into a sandbox, where print_r requires modification to test with it.