w3resource

PHP: get_defined_vars() function

Description

The get_defined_vars() function returns an array of all defined variables.

Version:

(PHP 4 and above)

Syntax:

get_defined_vars()

Return value:

A multidimensional array with all the variables.

Value Type: Array.

Example:

<?php
$array1 = array(10, 20, 30, 40, 50);
$array1 = get_defined_vars();
print_r($array1);
?>

Output:

Array  ( [GLOBALS] => Array  ( [GLOBALS] => Array   *RECURSION*              [_POST] => Array (  ) [_GET] => Array   (   ) [_COOKIE] => Array  (    )[_FILES] => Array(  ) [array1] => Array   *RECURSION* )  [_POST] => Array ( ) [_GET] => Array ( ) [_COOKIE] => Array ( ) [_FILES] => Array (  ) [array1] => Array   (  [0] => 10   [1] => 20 [2] => 30  [3] => 40    [4] => 50 )    ) 

View the example in the browser

Practice here online :

See also

PHP Function Reference

Previous: floatval
Next: get_resource_type



PHP: Tips of the Day

PHP - how to create a newline character?

Only double quoted strings interpret the escape sequences \r and \n as '0x0D' and '0x0A' respectively, so you want:

"\r\n"

Single quoted strings, on the other hand, only know the escape sequences \\ and \'.

So unless you concatenate the single quoted string with a line break generated elsewhere (e. g., using double quoted string "\r\n" or using chr function chr(0x0D).chr(0x0A)), the only other way to have a line break within a single quoted string is to literally type it with your editor:

$s = 'some text before the line break
some text after';

Make sure to check your editor for its line break settings if you require some specific character sequence (\r\n for example).

Ref : https://bit.ly/3hcyege