3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = (string)<; if (empty($var)) { echo "empty\n\n";}else{ echo "not empty\n\n";} var_dump($var);

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)
5.4.270.0170.06018.89
5.4.260.0100.07019.03
5.4.250.0200.05018.96
5.4.240.0030.06318.93
5.4.230.0130.07318.76
5.4.220.0130.05318.70
5.4.210.0230.06718.78
5.4.200.0170.07318.89
5.4.190.0130.05718.91
5.4.180.0170.05718.70
5.4.170.0170.07318.95
5.4.160.0170.05718.71
5.4.150.0270.06718.80
5.4.140.0100.05716.32
5.4.130.0130.04716.55
5.4.120.0270.06316.39
5.4.110.0030.06016.47
5.4.100.0100.05016.37
5.4.90.0100.04716.59
5.4.80.0100.07316.48
5.4.70.0130.05016.50
5.4.60.0070.05716.23
5.4.50.0070.06316.28
5.4.40.0130.04716.51
5.4.30.0130.04316.24
5.4.20.0100.06016.52
5.4.10.0200.05016.36
5.4.00.0130.04715.84
5.3.280.0030.07714.43
5.3.270.0230.05714.52
5.3.260.0100.07014.60
5.3.250.0070.05314.61
5.3.240.0200.06014.31
5.3.230.0170.06314.38
5.3.220.0200.05714.62
5.3.210.0100.07714.62
5.3.200.0070.05014.66
5.3.190.0130.05314.59
5.3.180.0200.06314.27
5.3.170.0130.05014.34
5.3.160.0100.05314.61
5.3.150.0170.05714.61
5.3.140.0070.05714.71
5.3.130.0170.06714.55
5.3.120.0200.07014.60
5.3.110.0100.05314.40
5.3.100.0100.06713.91
5.3.90.0070.07714.17
5.3.80.0170.04014.04
5.3.70.0130.05313.89
5.3.60.0100.06314.05
5.3.50.0130.06313.80
5.3.40.0100.04713.95
5.3.30.0030.05313.78
5.3.20.0200.04713.57
5.3.10.0100.05013.70
5.3.00.0170.04713.53
5.2.170.0170.05011.07
5.2.160.0170.04311.15
5.2.150.0100.04711.16
5.2.140.0070.04011.15
5.2.130.0070.04711.02
5.2.120.0100.04011.11
5.2.110.0100.03711.00
5.2.100.0100.04311.09
5.2.90.0100.05311.10
5.2.80.0130.03711.15
5.2.70.0100.06311.18
5.2.60.0100.06010.81
5.2.50.0030.04710.85
5.2.40.0130.04310.91
5.2.30.0170.05310.99
5.2.20.0100.05010.96
5.2.10.0200.03310.95
5.2.00.0000.05010.87
5.1.60.0100.0479.92
5.1.50.0070.0339.95
5.1.40.0070.04710.00
5.1.30.0100.04710.17
5.1.20.0070.03310.24
5.1.10.0030.05010.11
5.1.00.0030.04310.21
5.0.50.0030.0409.28
5.0.40.0100.0209.28
5.0.30.0100.0379.28
5.0.20.0100.0339.28
5.0.10.0000.0339.28
5.0.00.0100.0479.28
4.4.90.0030.0309.28
4.4.80.0030.0309.28
4.4.70.0000.0239.28
4.4.60.0000.0309.28
4.4.50.0130.0139.28
4.4.40.0000.0409.28
4.4.30.0030.0279.28
4.4.20.0030.0279.28
4.4.10.0100.0139.28
4.4.00.0000.0509.28
4.3.110.0030.0239.28
4.3.100.0030.0239.28
4.3.90.0100.0239.28
4.3.80.0030.0409.28
4.3.70.0070.0179.28
4.3.60.0070.0179.28
4.3.50.0030.0279.28
4.3.40.0000.0509.28
4.3.30.0030.0239.28
4.3.20.0000.0309.28
4.3.10.0070.0279.27
4.3.00.0030.0207.38

preferences:
132 ms | 1398 KiB | 7 Q