3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(unset($foo));

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)
5.4.270.0170.06318.84
5.4.260.0070.06318.65
5.4.250.0200.05718.99
5.4.240.0100.06018.96
5.4.230.0130.06718.95
5.4.220.0200.06718.96
5.4.210.0070.05319.09
5.4.200.0130.07718.96
5.4.190.0070.06318.99
5.4.180.0000.08318.84
5.4.170.0170.07018.80
5.4.160.0030.06018.89
5.4.150.0030.08719.00
5.4.140.0130.06016.34
5.4.130.0130.04316.33
5.4.120.0030.06016.29
5.4.110.0130.05716.51
5.4.100.0130.07016.52
5.4.90.0130.04716.66
5.4.80.0130.04716.47
5.4.70.0130.06716.38
5.4.60.0200.06316.31
5.4.50.0230.05016.54
5.4.40.0100.04716.50
5.4.30.0170.05716.46
5.4.20.0030.05316.54
5.4.10.0070.08316.45
5.4.00.0070.05015.84
5.3.280.0100.06314.61
5.3.270.0130.04314.70
5.3.260.0100.06714.62
5.3.250.0130.07014.61
5.3.240.0100.07714.31
5.3.230.0100.06714.61
5.3.220.0100.06714.43
5.3.210.0100.05314.58
5.3.200.0070.07714.72
5.3.190.0100.05014.57
5.3.180.0170.06714.58
5.3.170.0230.04014.45
5.3.160.0230.05714.56
5.3.150.0100.05014.72
5.3.140.0200.04014.71
5.3.130.0100.05314.47
5.3.120.0100.05714.26
5.3.110.0130.05314.25
5.3.100.0130.06713.98
5.3.90.0030.05314.13
5.3.80.0070.07013.86
5.3.70.0030.06013.90
5.3.60.0100.07013.92
5.3.50.0100.04713.97
5.3.40.0030.07713.99
5.3.30.0070.07313.78
5.3.20.0130.06013.70
5.3.10.0130.06313.74
5.3.00.0100.06013.69
5.2.170.0170.04711.15
5.2.160.0130.04011.29
5.2.150.0130.05011.29
5.2.140.0070.04711.16
5.2.130.0170.03011.01
5.2.120.0070.04311.01
5.2.110.0230.03010.86
5.2.100.0200.03011.01
5.2.90.0070.04010.86
5.2.80.0070.05711.24
5.2.70.0070.04311.12
5.2.60.0070.05711.14
5.2.50.0070.04010.95
5.2.40.0130.04011.00
5.2.30.0070.04011.13
5.2.20.0100.04710.84
5.2.10.0070.03710.92
5.2.00.0070.03710.64
5.1.60.0070.0439.95
5.1.50.0000.0539.86
5.1.40.0030.04010.03
5.1.30.0030.04010.09
5.1.20.0100.05310.53
5.1.10.0000.04010.03
5.1.00.0030.0409.96
5.0.50.0100.0308.56
5.0.40.0030.0278.46
5.0.30.0170.0438.24
5.0.20.0030.0278.19
5.0.10.0030.0308.22
5.0.00.0030.0638.11
4.4.90.0030.0205.86
4.4.80.0030.0275.84
4.4.70.0030.0235.89
4.4.60.0000.0275.77
4.4.50.0030.0235.76
4.4.40.0030.0435.78
4.4.30.0030.0235.76
4.4.20.0070.0335.80
4.4.10.0100.0305.98
4.4.00.0030.0405.80
4.3.110.0030.0305.83
4.3.100.0070.0205.76
4.3.90.0000.0305.76
4.3.80.0030.0435.76
4.3.70.0030.0205.76
4.3.60.0030.0305.76
4.3.50.0030.0235.76
4.3.40.0030.0336.18
4.3.30.0000.0236.18
4.3.20.0000.0276.18
4.3.10.0000.0276.18
4.3.00.0000.01715.57

preferences:
139.75 ms | 1394 KiB | 7 Q