3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo substr('1234567', -9, 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)
8.3.60.0070.00718.53
8.3.50.0100.00716.23
8.3.40.0160.00318.45
8.3.30.0100.00718.46
8.3.20.0080.00018.67
8.3.10.0070.00019.86
8.3.00.0090.00017.55
8.2.180.0090.00918.29
8.2.170.0040.01122.96
8.2.160.0000.01419.08
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0080.00021.05
8.2.120.0040.00426.35
8.2.110.0060.00319.27
8.2.100.0040.00817.93
8.2.90.0080.00019.23
8.2.80.0090.00017.97
8.2.70.0030.00517.50
8.2.60.0000.00817.87
8.2.50.0040.00418.10
8.2.40.0000.00820.58
8.2.30.0000.00820.43
8.2.20.0040.00417.52
8.2.10.0000.00717.86
8.2.00.0040.00417.88
8.1.280.0070.00725.92
8.1.270.0030.00623.82
8.1.260.0060.00328.09
8.1.250.0040.00428.09
8.1.240.0060.00322.45
8.1.230.0000.01017.57
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0040.00417.00
8.1.190.0030.00617.11
8.1.180.0060.00318.10
8.1.170.0040.00418.96
8.1.160.0000.00719.00
8.1.150.0000.00718.80
8.1.140.0070.00019.35
8.1.130.0000.00717.61
8.1.120.0040.00417.37
8.1.110.0040.00417.35
8.1.100.0000.00717.25
8.1.90.0000.00717.23
8.1.80.0030.00517.35
8.1.70.0000.00717.30
8.1.60.0040.00417.40
8.1.50.0040.00417.28
8.1.40.0030.00517.41
8.1.30.0030.00617.52
8.1.20.0080.00017.48
8.1.10.0000.00717.46
8.1.00.0030.00517.38
8.0.300.0000.00818.77
8.0.290.0080.00016.63
8.0.280.0070.00018.38
8.0.270.0030.00317.19
8.0.260.0000.00617.18
8.0.250.0070.00016.89
8.0.240.0000.00716.89
8.0.230.0040.00416.80
8.0.220.0030.00516.76
8.0.210.0000.00816.76
8.0.200.0000.00616.82
8.0.190.0000.00716.71
8.0.180.0060.00316.75
8.0.170.0030.00516.77
8.0.160.0070.00016.83
8.0.150.0000.00816.69
8.0.140.0000.00716.61
8.0.130.0030.00313.19
8.0.120.0030.00516.62
8.0.110.0030.00516.80
8.0.100.0070.00016.62
8.0.90.0000.00716.70
8.0.80.0030.01416.74
8.0.70.0040.00416.64
8.0.60.0040.00416.61
8.0.50.0040.00416.64
8.0.30.0150.00417.00
8.0.20.0100.01017.40
8.0.10.0000.00716.75
8.0.00.0140.00816.62
7.4.330.0030.00315.08
7.4.320.0000.00616.38
7.4.300.0000.00616.35
7.4.290.0030.00616.37
7.4.280.0000.00816.39
7.4.270.0000.00816.34
7.4.260.0030.00716.36
7.4.250.0040.00416.32
7.4.240.0000.00716.36
7.4.230.0070.00016.53
7.4.220.0100.01016.57
7.4.210.0090.00516.27
7.4.200.0030.00516.55
7.4.160.0060.00916.41
7.4.150.0130.00817.40
7.4.140.0070.01017.86
7.4.130.0130.00716.43
7.4.120.0110.00916.30
7.4.110.0070.01016.25
7.4.100.0070.01416.45
7.4.90.0140.00316.45
7.4.80.0130.00919.39
7.4.70.0040.01216.27
7.4.60.0110.00416.33
7.4.50.0060.00916.44
7.4.40.0070.01016.43
7.4.30.0060.00916.40
7.4.00.0130.00514.66
7.3.330.0000.00512.95
7.3.320.0060.00013.08
7.3.310.0040.00416.12
7.3.300.0000.00716.20
7.3.290.0050.00216.11
7.3.280.0110.00816.15
7.3.270.0150.00917.40
7.3.260.0130.00716.13
7.3.250.0100.00916.11
7.3.240.0100.01116.34
7.3.230.0060.01016.39
7.3.210.0130.00316.53
7.3.200.0100.00716.14
7.3.190.0060.01016.15
7.3.180.0090.00916.09
7.3.170.0100.00716.23
7.3.160.0060.01616.34
7.3.120.0100.01015.00
7.3.110.0140.00414.61
7.3.100.0030.01314.65
7.3.90.0000.00814.80
7.3.80.0050.00514.53
7.3.70.0060.00914.69
7.3.60.0070.00714.70
7.3.50.0060.00314.25
7.3.40.0030.00914.72
7.3.30.0100.00714.53
7.3.20.0100.00716.55
7.3.10.0030.00916.47
7.3.00.0070.00716.38
7.2.330.0070.01016.34
7.2.320.0030.01316.38
7.2.310.0100.00616.38
7.2.300.0030.01316.50
7.2.290.0090.00616.59
7.2.250.0000.01914.96
7.2.240.0160.00014.61
7.2.230.0100.00614.52
7.2.220.0040.00814.61
7.2.210.0030.01014.98
7.2.200.0000.01814.75
7.2.190.0070.00714.91
7.2.180.0090.00014.81
7.2.170.0110.00414.59
7.2.60.0330.00316.74
7.2.00.0000.01319.24
7.1.330.0110.00315.64
7.1.320.0070.00715.71
7.1.310.0000.01415.54
7.1.300.0060.00615.59
7.1.290.0070.00715.74
7.1.280.0150.00015.45
7.1.270.0070.00715.64
7.1.260.0030.00715.65
7.1.200.0090.00615.58
7.1.100.0180.00717.89
7.1.70.0040.00816.94
7.1.60.0070.01819.27
7.1.00.0030.07322.33
7.0.200.0100.00316.65
7.0.60.0200.07720.01
7.0.50.0370.06020.32
7.0.40.0270.06320.41
7.0.30.0300.06020.30
7.0.20.0270.05720.21
7.0.10.0170.07320.32
7.0.00.0100.06720.34
5.6.280.0070.07020.90
5.6.210.0070.08020.50
5.6.200.0170.05721.07
5.6.190.0230.05721.07
5.6.180.0230.06021.15
5.6.170.0270.05321.09
5.6.160.0270.06321.10
5.6.150.0230.06321.03
5.6.140.0030.06321.00
5.6.130.0200.06321.09
5.6.120.0070.06321.03
5.6.110.0170.05721.13
5.6.100.0300.05721.13
5.6.90.0200.06021.10
5.6.80.0170.05720.50
5.6.70.0400.03720.52
5.6.60.0100.06720.41
5.6.50.0300.05020.48
5.6.40.0230.05320.39
5.6.30.0300.04720.48
5.6.20.0030.06720.39
5.6.10.0200.05320.29
5.6.00.0270.05020.44
5.5.350.3700.03720.38
5.5.340.0200.04720.89
5.5.330.0300.05320.90
5.5.320.0170.06320.80
5.5.310.0070.07020.87
5.5.300.0130.05720.82
5.5.290.0270.05320.83
5.5.280.0070.06320.82
5.5.270.0270.06020.83
5.5.260.0270.05320.77
5.5.250.0330.04720.79
5.5.240.0230.05020.31
5.5.230.0270.05020.30
5.5.220.0270.05720.34
5.5.210.0270.05320.21
5.5.200.0270.04320.35
5.5.190.0200.05320.22
5.5.180.0170.06020.32
5.5.160.0300.04720.04
5.5.150.0170.05720.22
5.5.140.0130.06020.13
5.5.130.0200.05020.19
5.5.120.0270.04320.21
5.5.110.0200.06020.07
5.5.100.0200.05020.08
5.5.90.0200.05320.16
5.5.80.0230.05320.02
5.5.70.0170.05720.07
5.5.60.0130.05320.13
5.5.50.0170.05720.05
5.5.40.0100.06320.15
5.5.30.0130.05720.09
5.5.20.0300.04720.12
5.5.10.0170.05720.08
5.5.00.0170.05320.11

preferences:
57.62 ms | 401 KiB | 5 Q