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run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array( array( 'countryid' => 38 ), array( 'currency' => 'GBP', 'countryid' => 109 ), array( 'currency' => 'GBP', 'countryid' => 136 ), array( 'currency' => 'GBP', 'countryid' => 94 ), array( 'currency' => 'GBP') ); $map = array_combine(array_map(function($v){ return $v['countryid']; }, $arr), $arr); print_r($map);
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Undefined index: countryid in /in/354Sg on line 11 Array ( [38] => Array ( [countryid] => 38 ) [109] => Array ( [currency] => GBP [countryid] => 109 ) [136] => Array ( [currency] => GBP [countryid] => 136 ) [94] => Array ( [currency] => GBP [countryid] => 94 ) [] => Array ( [currency] => GBP ) )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/354Sg on line 11
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/354Sg on line 11
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/354Sg on line 11
Process exited with code 255.