3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = []; $b = $a; $a[] = 1; var_dump($b);

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)
8.3.40.0110.00718.89
8.3.30.0070.00718.97
8.3.20.0070.00020.04
8.3.10.0000.00822.09
8.3.00.0020.00522.43
8.2.170.0070.00722.96
8.2.160.0100.00322.11
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0030.00617.61
8.2.110.0060.00322.14
8.2.100.0040.00819.45
8.2.90.0060.00319.05
8.2.80.0030.00519.77
8.2.70.0040.00417.46
8.2.60.0030.00617.93
8.2.50.0030.00618.07
8.2.40.0030.00518.03
8.2.30.0040.00417.97
8.2.20.0030.00617.63
8.2.10.0050.00317.73
8.2.00.0040.00417.55
8.1.270.0000.00722.20
8.1.260.0030.01026.35
8.1.250.0040.00428.09
8.1.240.0090.00023.82
8.1.230.0070.00318.98
8.1.220.0060.00317.74
8.1.210.0040.00418.77
8.1.200.0060.00317.23
8.1.190.0040.00417.41
8.1.180.0060.00318.10
8.1.170.0030.00518.51
8.1.160.0030.00621.95
8.1.150.0000.00818.59
8.1.140.0000.00717.38
8.1.130.0000.00717.82
8.1.120.0070.00017.39
8.1.110.0050.00217.29
8.1.100.0000.00817.41
8.1.90.0050.00217.42
8.1.80.0050.00217.28
8.1.70.0030.00317.27
8.1.60.0000.00917.49
8.1.50.0000.00717.47
8.1.40.0000.00817.32
8.1.30.0040.00417.47
8.1.20.0040.00417.64
8.1.10.0040.00417.40
8.1.00.0070.00017.35
8.0.300.0070.00018.77
8.0.290.0040.00417.09
8.0.280.0030.00318.36
8.0.270.0030.00317.24
8.0.260.0060.00016.75
8.0.250.0030.00316.82
8.0.240.0080.00016.91
8.0.230.0000.00716.78
8.0.220.0030.00316.81
8.0.210.0070.00016.79
8.0.200.0030.00316.87
8.0.190.0050.00216.90
8.0.180.0070.00016.90
8.0.170.0000.00716.84
8.0.160.0050.00316.84
8.0.150.0030.00316.68
8.0.140.0040.00416.86
8.0.130.0050.00013.33
8.0.120.0040.00416.75
8.0.110.0070.00016.64
8.0.100.0000.00716.76
8.0.90.0040.00416.67
8.0.80.0060.00916.82
8.0.70.0000.00816.67
8.0.60.0070.00016.61
8.0.50.0040.00416.88
8.0.30.0100.01216.94
8.0.20.0100.00817.40
8.0.10.0080.00016.72
8.0.00.0130.00616.68
7.4.330.0000.00715.00
7.4.320.0030.00316.45
7.4.300.0000.00816.52
7.4.290.0000.00716.55
7.4.280.0030.00516.42
7.4.270.0000.00616.42
7.4.260.0000.00816.43
7.4.250.0090.00016.42
7.4.240.0030.00516.46
7.4.230.0070.00016.59
7.4.220.0140.00316.59
7.4.210.0090.00716.46
7.4.200.0040.00216.23
7.4.190.0030.00316.41
7.4.160.0130.00316.45
7.4.150.0150.00317.40
7.4.140.0070.01217.86
7.4.130.0080.01016.39
7.4.120.0140.00616.57
7.4.110.0140.00616.49
7.4.100.0100.00716.52
7.4.90.0130.00316.43
7.4.80.0070.01019.39
7.4.70.0100.00716.37
7.4.60.0070.01016.27
7.4.50.0050.00316.50
7.4.40.0030.00922.77
7.4.30.0070.01016.66
7.4.00.0100.00714.57
7.3.330.0000.00512.98
7.3.320.0000.00513.20
7.3.310.0000.00716.39
7.3.300.0070.00016.20
7.3.290.0110.00416.21
7.3.280.0090.01116.24
7.3.270.0120.00517.40
7.3.260.0170.00716.54
7.3.250.0110.01116.43
7.3.240.0040.01316.41
7.3.230.0070.01716.39
7.3.210.0070.01016.30
7.3.200.0140.00619.39
7.3.190.0040.01116.21
7.3.180.0150.00616.23
7.3.170.0090.01216.32
7.3.160.0080.00916.54
7.3.120.0070.01015.05
7.2.330.0100.01016.57
7.2.320.0090.01216.16
7.2.310.0070.01116.52
7.2.300.0140.00416.41
7.2.290.0110.01116.32
7.2.60.0090.00316.61
7.2.00.0000.01319.25
7.1.200.0060.00915.61
7.1.100.0050.00517.93
7.1.70.0030.00716.87
7.1.60.0070.01519.82
7.1.50.0130.01016.98
7.1.00.0030.07722.42
7.0.200.0140.00016.23
7.0.140.0000.07722.15
7.0.60.0030.06019.90
7.0.50.0030.04017.77
7.0.40.0000.05720.04
7.0.30.0430.07720.21
7.0.20.0400.06720.34
7.0.10.0430.07320.17
7.0.00.0100.03720.01
5.6.210.0030.07020.70
5.6.200.0030.04018.11
5.6.190.0070.07720.69
5.6.180.0000.09320.56
5.6.170.0230.03320.45
5.6.160.0000.07020.54
5.6.150.0100.06718.18
5.6.140.0030.05018.14
5.6.130.0130.06318.17
5.6.120.0100.07321.14
5.6.110.0000.04720.98
5.6.100.0070.03721.03
5.6.90.0070.07720.99
5.6.80.0130.07720.37
5.6.70.0130.03720.37
5.5.350.0100.08020.34
5.5.340.0070.04317.98
5.5.330.0070.08320.43
5.5.320.0200.08320.37
5.5.310.0200.04320.23
5.5.300.0070.04317.88
5.5.290.0030.04317.98
5.5.280.0130.05720.86
5.5.270.0070.08320.63
5.5.260.0170.02720.86
5.5.250.0230.06720.58
5.5.240.0030.03720.25
5.4.450.0830.07319.63
5.4.440.0670.06019.12
5.4.430.0200.04319.53
5.4.420.0130.05019.68
5.4.410.0100.05018.88
5.4.400.0300.05718.51
5.4.390.0300.07318.72
5.4.380.0330.04018.68
5.4.370.0100.05018.56
5.4.360.0070.04018.75
5.4.350.0070.03811.97
5.4.340.0040.03811.97
5.4.320.0070.04112.45
5.4.310.0050.03912.45
5.4.300.0040.03712.45
5.4.290.0040.04212.45
5.4.280.0070.03712.35
5.4.270.0070.06018.79
5.4.260.0130.06318.98
5.4.250.0100.05019.00
5.4.240.0170.05018.96
5.4.230.0030.05719.00
5.4.220.0130.05018.84
5.4.210.0100.05718.97
5.4.200.0130.04718.97
5.4.190.0130.05718.91
5.4.180.0070.06019.02
5.4.170.0170.07319.00
5.4.160.0100.05018.90
5.4.150.0200.04718.98
5.4.140.0130.05016.51
5.4.130.0100.07316.34
5.4.120.0070.05016.37
5.4.110.0100.05016.55
5.4.100.0030.07316.52
5.4.90.0070.05016.60
5.4.80.0130.04316.46
5.4.70.0070.05316.55
5.4.60.0070.05316.59
5.4.50.0070.05016.46
5.4.40.0100.04716.32
5.4.30.0030.06016.59
5.4.20.0070.05716.37
5.4.10.0030.05716.54
5.4.00.0100.04716.00
5.3.290.0100.05112.80
5.3.280.0100.05314.58
5.3.270.0100.10014.76
5.3.260.0170.05014.82
5.3.250.0170.05714.59
5.3.240.0030.06014.75
5.3.230.0100.05014.64
5.3.220.0200.04014.68
5.3.210.0170.05714.77
5.3.200.0130.04714.56
5.3.190.0170.05314.70
5.3.180.0130.06314.54
5.3.170.0100.05314.49
5.3.160.0000.05714.63
5.3.150.0130.04714.55
5.3.140.0070.05014.70
5.3.130.0170.04714.68
5.3.120.0170.04714.36
5.3.110.0030.07714.54
5.3.100.0070.06314.18
5.3.90.0100.05014.02
5.3.80.0100.05314.08
5.3.70.0130.05313.83
5.3.60.0100.05314.00
5.3.50.0100.04714.03
5.3.40.0170.04713.76
5.3.30.0100.05014.06
5.3.20.0030.05713.68
5.3.10.0130.04313.73
5.3.00.0100.05313.62
5.2.170.0070.04311.26
5.2.160.0070.04011.27
5.2.150.0130.04011.36
5.2.140.0000.05011.18
5.2.130.0030.04311.31
5.2.120.0170.03711.20
5.2.110.0130.04311.02
5.2.100.0030.04311.23
5.2.90.0070.05011.33
5.2.80.0030.04711.31
5.2.70.0170.03011.23
5.2.60.0070.04311.20
5.2.50.0030.04711.12
5.2.40.0030.04710.98
5.2.30.0000.04711.20
5.2.20.0170.03710.77
5.2.10.0100.03310.91
5.2.00.0000.04710.97
5.1.60.0070.03010.30
5.1.50.0070.03310.29
5.1.40.0030.03310.02
5.1.30.0100.03310.38
5.1.20.0100.03010.55
5.1.10.0070.03310.28
5.1.00.0070.05010.36
5.0.50.0070.0278.76
5.0.40.0030.0408.55
5.0.30.0070.0378.30
5.0.20.0100.0208.50
5.0.10.0070.0308.34
5.0.00.0030.0438.43
4.4.90.0030.0207.54
4.4.80.0030.0207.54
4.4.70.0030.0207.54
4.4.60.0000.0237.54
4.4.50.0070.0237.54
4.4.40.0000.0377.54
4.4.30.0000.0307.54
4.4.20.0030.0207.54
4.4.10.0030.0307.54
4.4.00.0030.0337.54
4.3.110.0070.0207.54
4.3.100.0000.0237.54
4.3.90.0030.0207.54
4.3.80.0000.0377.54
4.3.70.0000.0237.54
4.3.60.0000.0237.54
4.3.50.0000.0337.54
4.3.40.0000.0337.54
4.3.30.0030.0207.54
4.3.20.0030.0207.54
4.3.10.0070.0237.54
4.3.00.0030.0237.31

preferences:
33.46 ms | 400 KiB | 5 Q