3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "a_z"; $str++; var_dump($str);

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)
8.5.30.0090.00820.23
8.5.20.0090.00920.32
8.5.10.0120.00819.96
8.5.00.0160.00819.92
8.4.180.0120.01019.73
8.4.170.0130.00923.84
8.4.160.0140.00623.92
8.4.150.0080.00516.89
8.4.140.0190.00517.71
8.4.130.0110.00920.43
8.4.120.0100.01020.63
8.4.110.0100.01218.78
8.4.100.0130.00618.86
8.4.90.0120.00418.96
8.4.80.0120.00720.41
8.4.70.0100.00717.83
8.4.60.0110.01018.64
8.4.50.0070.00218.56
8.4.40.0090.00017.72
8.4.30.0200.00017.65
8.4.20.0130.00618.21
8.4.10.0060.01319.56
8.3.300.0110.00919.05
8.3.290.0120.00720.83
8.3.280.0120.00718.42
8.3.270.0130.00716.64
8.3.260.0090.01116.85
8.3.250.0100.00818.88
8.3.240.0140.00516.54
8.3.230.0100.00816.81
8.3.220.0120.00418.84
8.3.210.0130.00516.93
8.3.200.0050.00516.89
8.3.190.0040.00417.12
8.3.180.0110.00716.86
8.3.170.0090.00920.89
8.3.160.0060.01216.54
8.3.150.0090.00917.02
8.3.140.0000.01018.53
8.3.130.0050.00518.36
8.3.120.0060.00320.56
8.3.110.0060.00918.57
8.3.100.0080.00016.68
8.3.90.0080.00026.77
8.3.80.0060.00318.55
8.3.70.0090.00918.55
8.3.60.0090.00918.68
8.3.50.0070.01221.19
8.3.40.0090.00618.58
8.3.30.0070.00718.72
8.3.20.0040.00420.73
8.3.10.0040.00421.60
8.3.00.0050.00319.38
8.2.300.0090.01120.27
8.2.290.0040.00520.45
8.2.280.0150.00618.21
8.2.270.0070.00717.24
8.2.260.0110.00318.04
8.2.250.0000.00818.35
8.2.240.0040.00418.83
8.2.230.0050.00220.94
8.2.220.0000.01124.06
8.2.210.0080.00826.77
8.2.200.0060.00316.50
8.2.190.0090.00916.63
8.2.180.0130.01016.63
8.2.170.0100.00722.96
8.2.160.0030.01719.21
8.2.150.0070.00024.18
8.2.140.0000.00824.66
8.2.130.0100.00018.09
8.2.120.0070.00026.35
8.2.110.0070.00321.91
8.2.100.0080.00317.59
8.2.90.0000.00817.75
8.2.80.0080.00017.97
8.2.70.0040.00417.68
8.2.60.0000.00718.09
8.2.50.0040.00418.10
8.2.40.0040.00420.55
8.2.30.0020.00519.24
8.2.20.0040.00418.11
8.2.10.0000.00817.86
8.2.00.0040.00417.48
8.1.340.0110.00917.32
8.1.330.0110.00822.10
8.1.320.0080.00818.40
8.1.310.0080.00016.30
8.1.300.0040.00418.14
8.1.290.0090.00030.84
8.1.280.0100.01025.92
8.1.270.0040.00421.94
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0000.00923.70
8.1.230.0040.00819.14
8.1.220.0000.00917.74
8.1.210.0080.00018.77
8.1.200.0040.00417.35
8.1.190.0040.00420.25
8.1.180.0040.00418.10
8.1.170.0000.00818.56
8.1.160.0000.00818.88
8.1.150.0000.00720.17
8.1.140.0040.00419.49
8.1.130.0070.00018.94
8.1.120.0000.00717.28
8.1.110.0000.00717.23
8.1.100.0000.00817.23
8.1.90.0030.00517.38
8.1.80.0050.00517.38
8.1.70.0000.00717.39
8.1.60.0060.00317.53
8.1.50.0030.00717.35
8.1.40.0000.00817.45
8.1.30.0000.00817.57
8.1.20.0000.00817.53
8.1.10.0030.00517.30
8.1.00.0040.00417.34
8.0.300.0070.00018.77
8.0.290.0070.00016.75
8.0.280.0040.00418.27
8.0.270.0050.00317.04
8.0.260.0040.00417.07
8.0.250.0030.00516.84
8.0.240.0000.00716.95
8.0.230.0000.00716.91
8.0.220.0030.00616.79
8.0.210.0050.00216.77
8.0.200.0000.00716.86
8.0.190.0040.00416.90
8.0.180.0000.00716.80
8.0.170.0040.00416.73
8.0.160.0040.00416.84
8.0.150.0070.00016.65
8.0.140.0000.00716.65
8.0.130.0000.00513.28
8.0.120.0040.00416.78
8.0.110.0020.00516.80
8.0.100.0040.00416.80
8.0.90.0040.00316.91
8.0.80.0090.00616.77
8.0.70.0000.00716.75
8.0.60.0080.00016.93
8.0.50.0000.00716.72
8.0.30.0050.01216.93
8.0.20.0120.00617.40
8.0.10.0040.00416.95
8.0.00.0100.00616.54
7.4.330.0030.00315.55
7.4.320.0060.00016.55
7.4.300.0070.00016.50
7.4.290.0070.00016.40
7.4.280.0040.00416.55
7.4.270.0000.00716.41
7.4.260.0030.00316.41
7.4.250.0070.00016.35
7.4.240.0040.00416.58
7.4.230.0000.00716.59
7.4.220.0070.01116.61
7.4.210.0090.00516.51
7.4.200.0050.00316.62
7.4.160.0070.00916.42
7.4.150.0130.00417.40
7.4.140.0120.00917.86
7.4.130.0080.00916.41
7.4.120.0070.01116.44
7.4.110.0090.00616.50
7.4.100.0100.00716.22
7.4.90.0150.00416.25
7.4.80.0130.00719.39
7.4.70.0070.01016.52
7.4.60.0110.00416.39
7.4.50.0080.00516.33
7.4.40.0070.01016.35
7.4.30.0110.00716.32
7.4.00.0030.01014.60
7.3.330.0050.00013.03
7.3.320.0050.00013.15
7.3.310.0020.00516.33
7.3.300.0040.00416.07
7.3.290.0070.00016.17
7.3.280.0080.00916.17
7.3.270.0070.01517.40
7.3.260.0110.00816.22
7.3.250.0060.01116.36
7.3.240.0110.00916.36
7.3.230.0090.01316.43
7.3.210.0140.00716.18
7.3.200.0100.00616.10
7.3.190.0130.00316.39
7.3.180.0090.00616.45
7.3.170.0090.00616.29
7.3.160.0090.01316.25
7.3.10.0060.01016.64
7.3.00.0070.01016.69
7.2.330.0130.00316.64
7.2.320.0100.00716.54
7.2.310.0070.01416.59
7.2.300.0120.00916.23
7.2.290.0060.01516.36
7.2.130.0120.00416.75
7.2.120.0070.01116.69
7.2.110.0000.01616.88
7.2.100.0030.00916.72
7.2.90.0070.00716.97
7.2.80.0030.00716.87
7.2.70.0070.00316.68
7.2.60.0070.00816.59
7.2.50.0030.01016.84
7.2.40.0070.00316.66
7.2.30.0090.00616.81
7.2.20.0070.00716.67
7.2.10.0110.00016.87
7.2.00.0090.00616.77
7.1.250.0030.00715.55
7.1.200.0030.00715.83
7.1.70.0000.01616.82
7.1.60.0060.00617.06
7.1.00.0170.08022.61
7.0.200.0030.01316.84
7.0.140.0100.05321.95
7.0.130.0070.05722.12
7.0.120.0130.05022.09
7.0.110.0100.07721.92
7.0.100.0230.04322.21
7.0.90.0000.06322.27
7.0.80.0000.06322.16
7.0.70.0170.04721.98
7.0.60.0030.06021.97
7.0.50.0000.06322.07
7.0.40.0100.05322.17
7.0.30.0100.05022.17
7.0.20.0100.05321.97
7.0.10.0100.05022.01
7.0.00.0000.06321.97
5.6.290.0100.05020.88
5.6.280.0130.05320.79
5.6.270.0030.06021.09
5.6.260.0200.07320.88
5.6.250.0070.05320.78
5.6.240.0070.05720.81
5.6.230.0100.06020.73
5.6.220.0100.05320.82
5.6.210.0030.06020.95
5.6.200.0070.06020.88
5.6.190.0000.06320.91
5.6.180.0070.05721.05
5.6.170.0070.05720.73
5.6.160.0070.05721.04
5.6.150.0170.05021.07
5.6.140.0130.05321.02
5.6.130.0000.06321.02
5.6.120.0030.06321.07
5.6.110.0100.06321.06
5.6.100.0170.05320.89
5.6.90.0130.04720.85
5.6.80.0070.05020.43
5.6.70.0100.05320.39
5.6.60.0170.04720.25
5.6.50.0030.05720.24
5.6.40.0000.06320.25
5.6.30.0100.05320.21
5.6.20.0130.05020.41
5.6.10.0200.04020.43
5.6.00.0100.05320.15

preferences:
105.55 ms | 1592 KiB | 5 Q