3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(empty($expected_array_got_string['some_key']))

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
5.4.40.0030.03316.28
5.4.30.0000.03716.21
5.4.20.0030.03316.22
5.4.10.0000.04016.28
5.4.00.0030.03315.80
5.3.140.0070.03314.48
5.3.130.0070.03314.50
5.3.120.0100.03314.48
5.3.110.0100.03714.50
5.3.100.0100.03014.01
5.3.90.0000.03713.95
5.3.80.0030.03713.95
5.3.70.0100.03014.11
5.3.60.0030.04013.79
5.3.50.0070.07313.76
5.3.40.0030.04013.76
5.3.30.0070.07013.87
5.3.20.0000.05013.62
5.3.10.0000.05013.58
5.3.00.0070.05013.58

preferences:
134.51 ms | 1394 KiB | 7 Q