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run code in 300+ PHP versions simultaneously
<?php function transfer( $arr, $prefix=array(), $glue="_" ) { $res = array(); foreach( $arr as $key => $val ) { $key = array_merge( $prefix, array($key) ); if( is_array($val) ) $res = array_merge( $res, transfer( $val, $key, $glue ) ); else $res[ implode($glue, $key) ] = $val; } return $res; } $attributes = array( 'Users' => array( 'Name' => 'Name', ), 'Address' => 'Address', 'Tags' => array( 0 => array( 'Key' => 'Key', 'Value' => 'Value', ), 1 => array( 'Key' => 'Key', ), 2 => array( ) ), ); var_dump( transfer( $attributes ) );
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array(5) { ["Users_Name"]=> string(4) "Name" ["Address"]=> string(7) "Address" ["Tags_0_Key"]=> string(3) "Key" ["Tags_0_Value"]=> string(5) "Value" ["Tags_1_Key"]=> string(3) "Key" }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array(5) { ["Users_Name"]=> string(4) "Name" ["Address"]=> string(7) "Address" ["Tags_0_Key"]=> string(3) "Key" ["Tags_0_Value"]=> string(5) "Value" ["Tags_1_Key"]=> string(3) "Key" }
preferences:
334.72 ms | 402 KiB | 423 Q