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run code in 150+ php & hhvm versions
Bugs & Features
<?php $haystack = array( 'A', 'B' => array('BA'), 'C' => array('CA' => array('CAA')), 'D' => array('DA' => array('DAA' => array('DAAA'))) ); function array_find($needle, array $haystack) { $found = false; $search = array('needle' => $needle, 'found' => &$found); array_walk_recursive($haystack, function($val, $key, $found) { if ($found['needle'] == $val) $found['found'] = true; }, $search); return $found;} $find = array('A', 'BA', 'CAA', 'DAAA'); foreach($find as $needle) { if (array_find($needle, $haystack)) { echo $needle, " found".PHP_EOL; } else { echo $needle, " not found".PHP_EOL; } }
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
A found BA found CAA found DAAA found
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/639Cu on line 12
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/639Cu on line 9
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_ARRAY, expecting '&' or T_VARIABLE or T_CONST in /in/639Cu on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE or T_CONST in /in/639Cu on line 9
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'&'' or `T_VARIABLE' or `T_CONST' in /in/639Cu on line 9
Process exited with code 255.