3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr_dates = array(20150616,20150615,20150612,20150611,20150610,20150609,20150608,20150605,20150604,20150603,20150602,20150601,20150529,20150528,20150521,20150514,20150507,20150430,20150423,20150416,20150409,20150402,20150326); $current_date = 20150616; $expected_trend_date = 20150516; $expected_result = 20150514; $trend_dates = usort($arr_dates, function ($date1, $date2) use ($expected_trend_date) { return ($expected_trend_date - $date1) < ($expected_trend_date - $date2); }); var_dump($trend_dates);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Deprecated: usort(): Returning bool from comparison function is deprecated, return an integer less than, equal to, or greater than zero in /in/JIaqZ on line 9 bool(true)
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Deprecated: usort(): Returning bool from comparison function is deprecated, return an integer less than, equal to, or greater than zero in /in/JIaqZ on line 11 bool(true)
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
bool(true)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/JIaqZ on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/JIaqZ on line 9
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/JIaqZ on line 9
Process exited with code 255.

preferences:
239.03 ms | 401 KiB | 355 Q