3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('x' => array(3, 4)); print_r(array('x' => []) += $a);

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)
5.4.390.0070.05318.80
5.4.380.0070.06318.46
5.4.370.0070.05718.80
5.4.360.0070.05018.56
5.4.350.0070.05718.53
5.4.340.0030.06018.56
5.4.320.0130.06718.59
5.4.310.0130.07018.74
5.4.300.0070.06318.46
5.4.290.0070.05318.61
5.4.280.0100.05018.69
5.4.270.0030.06018.80
5.4.260.0100.06318.71
5.4.250.0200.06018.82
5.4.240.0030.06018.68
5.4.230.0070.05718.49
5.4.220.0030.06018.52
5.4.210.0000.06018.79
5.4.200.0100.05016.61
5.4.190.0170.04318.59
5.4.180.0130.05318.77
5.4.170.0100.06018.70
5.4.160.0070.06318.73
5.4.150.0070.06318.78
5.4.140.0100.06316.43
5.4.130.0130.06316.43
5.4.120.0170.05716.29
5.4.110.0100.04316.29
5.4.100.0070.05016.43
5.4.90.0100.04716.32
5.4.80.0030.05716.39
5.4.70.0070.05316.18
5.4.60.0070.06316.20
5.4.50.0070.05316.25
5.4.40.0070.05716.15
5.4.30.0130.04316.27
5.4.20.0130.04316.39
5.4.10.0070.05016.37
5.4.00.0070.05015.66
5.3.290.0100.05314.67
5.3.280.0130.06314.63
5.3.270.0130.05014.60
5.3.260.0100.05314.62
5.3.250.0070.05314.61
5.3.240.0100.07014.65
5.3.230.0100.06314.59
5.3.220.0100.06714.56
5.3.210.0170.06014.50
5.3.200.0100.06714.56
5.3.190.0070.05314.66
5.3.180.0030.05314.65
5.3.170.0170.05714.60
5.3.160.0070.06714.59
5.3.150.0030.05714.51
5.3.140.0100.04714.59
5.3.130.0070.05314.54
5.3.120.0100.05314.52
5.3.110.0030.06014.64
5.3.100.0070.05713.97
5.3.90.0000.05713.97
5.3.80.0070.05714.04
5.3.70.0030.05714.13
5.3.60.0070.06314.08
5.3.50.0030.05713.86
5.3.40.0100.05313.92
5.3.30.0100.05013.82
5.3.20.0030.06713.69
5.3.10.0070.05313.75
5.3.00.0030.05313.59
5.2.170.0070.04011.09
5.2.160.0070.04011.13
5.2.150.0030.04311.19
5.2.140.0030.04311.14
5.2.130.0030.04311.11
5.2.120.0000.05311.24
5.2.110.0030.04011.25
5.2.100.0030.05311.11
5.2.90.0070.04311.14
5.2.80.0000.06011.14
5.2.70.0130.05311.04
5.2.60.0030.04311.03
5.2.50.0070.05311.05
5.2.40.0000.04711.03
5.2.30.0170.03010.96
5.2.20.0030.05011.00
5.2.10.0030.04310.83
5.2.00.0100.03710.69
5.1.60.0070.0379.97
5.1.50.0070.0479.97
5.1.40.0070.05010.01
5.1.30.0000.04310.43
5.1.20.0000.05310.45
5.1.10.0170.03010.21
5.1.00.0070.05010.07
5.0.50.0100.0338.61
5.0.40.0100.0238.44
5.0.30.0000.0478.29
5.0.20.0030.0278.25
5.0.10.0030.0308.14
5.0.00.0030.0538.29
4.4.90.0030.0275.88
4.4.80.0000.0305.92
4.4.70.0070.0205.90
4.4.60.0030.0235.90
4.4.50.0070.0275.90
4.4.40.0000.0435.86
4.4.30.0000.0275.87
4.4.20.0000.0235.94
4.4.10.0030.0275.93
4.4.00.0000.0405.96
4.3.110.0000.0275.88
4.3.100.0030.0205.79
4.3.90.0030.0205.80
4.3.80.0000.0375.77
4.3.70.0070.0235.77
4.3.60.0070.0275.79
4.3.50.0030.0235.78
4.3.40.0070.0375.75
4.3.30.0030.0234.66
4.3.20.0030.0234.61
4.3.10.0030.0234.60
4.3.00.0170.01714.62

preferences:
144.92 ms | 1398 KiB | 7 Q