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run code in 150+ php & hhvm versions
Bugs & Features
<?php function _sorter() { return function($elem1, $elem2) { if(strcmp($elem1['sequenceName'], $elem2['sequenceName']) < 0) { return -1; } else if (strcmp($elem1['sequenceName'], $elem2['sequenceName']) === 0) { $elem1DT = $elem1['dateTime']; $elem2DT = $elem2['dateTime']; if ($elem1DT->isBefore($elem2DT)) { return -1; } else if ($elem1DT->isAfter($elem2DT)) { return 1; } else { return 0; } } else if (strcmp($elem1['sequenceName'], $elem2['sequenceName']) > 0) { return 1; } }; } $tmp = array("apples", "bananas","bananas","argyles"); usort($tmp, array($this, '_sorter')); var_dump($tmp);
Output for 7.1.0
Fatal error: Uncaught Error: Using $this when not in object context in /in/GBNnT:23 Stack trace: #0 {main} thrown in /in/GBNnT on line 23
Process exited with code 255.
Output for 5.3.0 - 7.0.14
Notice: Undefined variable: this in /in/GBNnT on line 23 Warning: usort() expects parameter 2 to be a valid callback, first array member is not a valid class name or object in /in/GBNnT on line 23 array(4) { [0]=> string(6) "apples" [1]=> string(7) "bananas" [2]=> string(7) "bananas" [3]=> string(7) "argyles" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/GBNnT on line 3
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 in /in/GBNnT on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/GBNnT on line 3
Process exited with code 255.