3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "A"; echo substr($string, 1); ?>

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)
8.3.40.0170.00318.59
8.3.30.0030.01020.04
8.3.20.0070.00020.09
8.3.10.0100.00322.09
8.3.00.0040.00422.46
8.2.170.0150.00022.96
8.2.160.0140.00022.13
8.2.150.0090.00924.18
8.2.140.0090.00024.66
8.2.130.0050.00326.16
8.2.120.0150.00419.36
8.2.110.0080.00322.08
8.2.100.0120.00317.74
8.2.90.0000.00719.05
8.2.80.0000.00819.45
8.2.70.0050.00317.50
8.2.60.0000.00717.93
8.2.50.0030.00618.07
8.2.40.0000.00818.20
8.2.30.0040.00418.08
8.2.20.0080.00017.52
8.2.10.0000.00717.67
8.2.00.0050.00517.61
8.1.270.0000.00824.66
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0100.00023.76
8.1.230.0080.00418.93
8.1.220.0030.00617.74
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0030.00517.41
8.1.180.0030.00618.84
8.1.170.0080.00018.49
8.1.160.0040.00422.06
8.1.150.0070.00318.44
8.1.140.0040.00417.34
8.1.130.0000.00717.82
8.1.120.0070.00017.42
8.1.110.0070.00017.43
8.1.100.0030.00517.38
8.1.90.0030.00317.30
8.1.80.0000.00717.31
8.1.70.0000.00717.34
8.1.60.0080.00017.47
8.1.50.0000.00817.40
8.1.40.0050.00317.34
8.1.30.0040.00417.43
8.1.20.0030.00517.61
8.1.10.0050.00217.41
8.1.00.0040.00417.45
8.0.300.0000.00718.77
8.0.290.0070.00017.05
8.0.280.0030.00318.43
8.0.270.0070.00017.25
8.0.260.0040.00416.72
8.0.250.0030.00316.95
8.0.240.0000.00816.74
8.0.230.0070.00016.85
8.0.220.0030.00316.70
8.0.210.0030.00316.79
8.0.200.0070.00016.84
8.0.190.0050.00216.79
8.0.180.0040.00416.75
8.0.170.0040.00416.74
8.0.160.0050.00216.77
8.0.150.0000.00716.84
8.0.140.0000.00816.80
8.0.130.0030.00313.17
8.0.120.0060.00316.87
8.0.110.0040.00416.84
8.0.100.0030.00316.88
8.0.90.0000.00716.88
8.0.80.0100.00316.75
8.0.70.0000.00716.85
8.0.60.0000.00716.86
8.0.50.0030.00316.82
8.0.30.0070.01317.21
8.0.20.0060.01217.40
8.0.10.0040.00317.03
8.0.00.0070.01616.77
7.4.330.0050.00015.00
7.4.320.0030.00316.45
7.4.300.0000.00616.41
7.4.290.0070.00016.47
7.4.280.0000.00716.55
7.4.270.0040.00416.38
7.4.260.0030.00316.42
7.4.250.0000.00716.51
7.4.240.0020.00516.48
7.4.230.0070.00016.55
7.4.220.0060.01616.32
7.4.210.0100.00616.45
7.4.200.0030.00316.36
7.4.190.0040.00416.66
7.4.160.0090.00616.43
7.4.150.0130.01017.40
7.4.140.0080.00917.86
7.4.130.0100.00716.28
7.4.120.0040.01216.41
7.4.110.0120.00516.47
7.4.100.0120.00616.46
7.4.90.0090.00916.50
7.4.80.0150.00419.39
7.4.70.0120.00616.33
7.4.60.0130.00316.31
7.4.50.0050.00316.38
7.4.40.0070.00722.77
7.4.30.0110.01116.34
7.4.00.0100.00814.84
7.3.330.0000.00512.97
7.3.320.0050.00012.97
7.3.310.0030.00316.08
7.3.300.0030.00616.17
7.3.290.0070.00716.13
7.3.280.0080.00716.11
7.3.270.0130.00317.40
7.3.260.0060.01216.14
7.3.250.0100.01416.18
7.3.240.0200.00316.29
7.3.230.0090.00616.39
7.3.210.0060.01516.16
7.3.200.0060.01019.39
7.3.190.0070.01316.47
7.3.180.0090.00916.51
7.3.170.0140.00316.27
7.3.160.0070.01016.29
7.3.120.0090.00914.85
7.3.110.0100.00814.64
7.3.100.0100.00314.70
7.3.90.0050.00914.71
7.3.80.0060.00314.56
7.3.70.0080.00814.53
7.3.60.0080.00714.67
7.3.50.0080.00714.60
7.3.40.0050.00514.50
7.3.30.0060.00814.66
7.3.20.0070.00316.65
7.3.10.0080.00416.48
7.3.00.0050.00716.42
7.2.330.0140.00216.35
7.2.320.0040.01716.38
7.2.310.0030.01716.50
7.2.300.0130.00316.60
7.2.290.0090.00616.28
7.2.250.0080.00814.79
7.2.240.0060.01015.05
7.2.230.0040.01014.97
7.2.220.0080.00814.63
7.2.210.0050.00915.01
7.2.200.0040.01214.77
7.2.190.0050.00914.84
7.2.180.0070.01014.75
7.2.170.0080.00614.54
7.2.160.0110.00314.85
7.2.150.0000.00916.85
7.2.140.0100.00316.60
7.2.130.0140.00316.59
7.2.120.0030.01016.87
7.2.110.0070.00716.39
7.2.100.0080.00616.51
7.2.90.0100.00316.91
7.2.80.0100.00316.80
7.2.70.0030.01016.74
7.2.60.0160.00916.61
7.2.50.0060.00916.66
7.2.40.0060.00916.71
7.2.30.0070.01016.57
7.2.20.0000.01316.70
7.2.10.0040.01116.89
7.2.00.0030.01117.88
7.1.330.0020.01315.87
7.1.320.0040.00615.73
7.1.310.0050.00815.54
7.1.300.0040.00815.72
7.1.290.0030.01015.70
7.1.280.0060.00715.67
7.1.270.0070.00715.62
7.1.260.0000.01315.65
7.1.250.0090.00315.68
7.1.200.0060.00915.61
7.1.100.0090.00617.86
7.1.70.0030.01017.25
7.1.60.0070.01719.43
7.1.50.0030.02016.86
7.1.00.0000.04022.54
7.0.200.0000.00716.86
7.0.140.0000.07722.05
7.0.60.0100.08319.99
7.0.50.0100.03717.79
7.0.40.0030.08320.07
7.0.30.0330.07720.30
7.0.20.0330.07720.00
7.0.10.0130.05320.20
7.0.00.0100.03320.29
5.6.280.0100.06721.12
5.6.210.0200.06320.64
5.6.200.0070.05718.11
5.6.190.0070.04020.55
5.6.180.0230.08020.49
5.6.170.0370.08020.56
5.6.160.0100.04020.48
5.6.150.0070.03718.20
5.6.140.0170.07318.11
5.6.130.0030.06318.21
5.6.120.0100.04721.14
5.6.110.0070.05320.97
5.6.100.0100.07020.99
5.6.90.0030.07320.96
5.6.80.0100.07720.38
5.6.70.0200.04320.41
5.5.350.0100.06020.39
5.5.340.0070.07018.00
5.5.330.0100.03720.13
5.5.320.0370.07320.29
5.5.310.0170.04020.29
5.5.300.0030.08318.00
5.5.290.0030.06018.00
5.5.280.0030.04320.67
5.5.270.0170.07020.75
5.5.260.0030.05320.83
5.5.250.0070.05720.69
5.5.240.0100.07320.18
5.4.450.0100.05719.59
5.4.440.0630.06719.52
5.4.430.1170.04319.64
5.4.420.0830.05319.41
5.4.410.0700.06019.41
5.4.400.1130.06318.77
5.4.390.1370.06718.71
5.4.380.0200.05318.68
5.4.370.0230.05018.71
5.4.360.0300.04318.70
5.4.350.0130.03811.97
5.4.340.0110.04411.97
5.4.320.0040.03712.45
5.4.310.0080.03912.45
5.4.300.0050.04212.45
5.4.290.0040.05612.45
5.4.280.0060.03712.35
5.4.270.0060.03612.34
5.4.260.0080.03712.34
5.4.250.0080.03612.34
5.3.290.0060.03912.80
4.3.00.0130.0206.73

preferences:
41.64 ms | 400 KiB | 5 Q