3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = 'asdfghkjqwertyiuasdfghkjqwertyaiusdfghkjxzcvbnmasdfgkjqwertasdfgjkzxcvbmnasdfgjkqwertiu'; for ($i = 0; $i < 100000; $i++) { $ss = substr($s, $i % strlen($s), 24); }

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)
8.3.60.0170.00718.43
8.3.50.0170.01019.95
8.3.40.0130.00618.71
8.3.30.0070.01118.80
8.3.20.0220.00420.10
8.3.10.0030.00723.56
8.3.00.0000.01119.13
8.2.180.0040.01516.38
8.2.170.0060.01322.96
8.2.160.0030.01420.35
8.2.150.0030.00724.18
8.2.140.0030.01524.66
8.2.130.0060.00326.16
8.2.120.0040.00721.02
8.2.110.0090.00622.15
8.2.100.0050.01020.54
8.2.90.0060.00618.94
8.2.80.0030.00917.97
8.2.70.0040.00817.50
8.2.60.0000.01217.78
8.2.50.0040.00818.07
8.2.40.0000.01118.22
8.2.30.0040.00718.05
8.2.20.0030.00917.68
8.2.10.0000.01118.16
8.2.00.0040.00717.73
8.1.270.0000.01023.64
8.1.260.0000.01026.35
8.1.250.0050.00528.09
8.1.240.0040.01121.94
8.1.230.0060.00918.82
8.1.220.0000.01217.74
8.1.210.0000.01318.77
8.1.200.0060.00917.35
8.1.190.0000.01217.10
8.1.180.0040.00818.10
8.1.170.0040.00718.46
8.1.160.0040.00721.94
8.1.150.0030.00818.82
8.1.140.0080.00417.31
8.1.130.0030.00817.86
8.1.120.0080.00417.43
8.1.110.0000.01117.34
8.1.100.0040.00817.42
8.1.90.0040.00717.38
8.1.80.0040.00717.38
8.1.70.0040.00817.24
8.1.60.0080.00617.39
8.1.50.0000.01217.46
8.1.40.0000.01217.40
8.1.30.0000.01317.55
8.1.20.0000.01317.49
8.1.10.0000.01317.39
8.1.00.0100.00317.27
8.0.300.0030.00718.77
8.0.290.0030.00916.63
8.0.280.0040.00718.35
8.0.270.0000.01117.25
8.0.260.0030.00717.25
8.0.250.0030.00716.96
8.0.240.0030.00716.93
8.0.230.0000.01216.80
8.0.220.0080.00416.83
8.0.210.0000.01116.92
8.0.200.0030.00716.95
8.0.190.0050.01016.98
8.0.180.0040.01116.81
8.0.170.0030.01016.82
8.0.160.0000.01316.82
8.0.150.0030.00916.80
8.0.140.0000.01216.80
8.0.130.0000.01113.32
8.0.120.0040.00816.79
8.0.110.0040.00816.77
8.0.100.0060.00616.77
8.0.90.0000.01216.75
8.0.80.0150.00916.88
8.0.70.0040.00816.82
8.0.60.0060.00616.89
8.0.50.0060.00616.87
8.0.30.0120.02217.00
8.0.20.0120.02117.40
8.0.10.0030.00916.96
8.0.00.0030.02216.64
7.4.330.0060.00315.00
7.4.320.0040.00816.43
7.4.300.0000.01116.44
7.4.290.0000.01216.47
7.4.280.0000.01216.31
7.4.270.0030.00916.45
7.4.260.0000.01216.44
7.4.250.0040.00816.39
7.4.240.0080.00516.48
7.4.230.0000.01216.42
7.4.220.0120.01516.42
7.4.210.0000.02116.59
7.4.200.0070.00716.62
7.4.160.0200.02616.45
7.4.150.0130.01317.40
7.4.140.0130.01217.86
7.4.130.0060.02116.34
7.4.120.0140.01216.37
7.4.110.0100.01416.38
7.4.100.0030.02116.54
7.4.90.0100.02316.50
7.4.80.0100.01919.39
7.4.70.0080.01816.60
7.4.60.0090.01516.39
7.4.50.0000.01316.25
7.4.40.0120.00916.22
7.4.30.0120.01216.47
7.4.00.0060.01814.80
7.3.330.0000.01013.26
7.3.320.0040.00713.05
7.3.310.0000.01316.29
7.3.300.0060.00616.28
7.3.290.0070.01416.28
7.3.280.0120.01916.36
7.3.270.0060.02017.40
7.3.260.0190.00616.50
7.3.250.0110.02016.33
7.3.240.0110.01416.54
7.3.230.0090.01416.39
7.3.210.0090.01516.30
7.3.200.0120.02219.39
7.3.190.0110.01416.63
7.3.180.0130.01016.36
7.3.170.0130.01016.48
7.3.160.0130.01016.41
7.3.10.0090.02116.21
7.3.00.0190.01116.24
7.2.330.0070.02016.54
7.2.320.0040.02216.62
7.2.310.0190.01616.57
7.2.300.0070.01716.35
7.2.290.0060.01816.63
7.2.130.0060.01916.52
7.2.120.0090.01816.70
7.2.110.0150.01916.32
7.2.100.0100.01616.35
7.2.90.0110.01816.67
7.2.80.0110.02216.63
7.2.70.0130.02216.86
7.2.60.0100.01316.45
7.2.50.0110.02216.73
7.2.40.0130.01916.47
7.2.30.0100.02416.74
7.2.20.0140.02516.47
7.2.10.0160.01616.85
7.2.00.0070.01418.17
7.1.250.0120.02515.59
7.1.100.0110.01817.93
7.1.70.0000.01317.30
7.1.60.0000.01617.29
7.1.50.0070.03017.11
7.1.00.0030.08722.44
7.0.200.0040.02516.76
7.0.140.0070.08021.92
7.0.60.0000.07319.93
7.0.50.0070.08717.66
7.0.40.0130.06720.04
7.0.30.0130.05320.20
7.0.20.0270.06320.01
7.0.10.0100.09320.16
7.0.00.0100.04020.19
5.6.280.0000.12320.98
5.6.210.0070.09020.54
5.6.200.0070.07718.13
5.6.190.0070.06020.33
5.6.180.0300.10320.67
5.6.170.0230.12020.61
5.6.160.0100.07720.50
5.6.150.0070.11018.21
5.6.140.0030.06018.17
5.6.130.0130.06318.18
5.6.120.0070.09321.12
5.6.110.0070.11021.00
5.6.100.0100.09320.88
5.6.90.0100.09321.10
5.6.80.0000.06720.50
5.5.350.0330.10320.32
5.5.340.0100.06717.91
5.5.330.0070.11020.25
5.5.320.0270.11020.29
5.5.310.0370.10020.41
5.5.300.0030.10317.97
5.5.290.0100.06017.98
5.5.280.0070.11020.88
5.5.270.0130.11020.72
5.5.260.0130.07320.73
5.5.250.0100.10320.66
5.5.240.0030.07720.33
5.4.450.0830.08719.52
5.4.440.0600.13719.46
5.4.430.0430.09719.56
5.4.420.0600.08719.13
5.4.410.0070.09318.98
5.4.400.1070.08318.82
5.4.390.0730.10718.72
5.4.380.0200.09018.56
5.4.370.0130.09018.61
5.4.360.0070.08018.68
5.4.350.0060.06111.98
5.4.340.0110.06911.97
5.4.320.0080.06512.46
5.4.310.0080.06312.45
5.4.300.0060.06612.46
5.4.290.0080.06012.45
5.4.280.0070.06212.35
5.4.270.0050.06612.35
5.4.260.0060.06412.35
5.4.250.0050.07012.35
5.4.240.0030.06612.35
5.4.230.0040.06612.34
5.4.220.0030.06712.34
5.4.210.0070.06812.34
5.4.200.0080.06212.34
5.4.190.0050.06212.34
5.4.180.0050.06912.34
5.4.170.0050.06312.35
5.4.160.0060.06012.34
5.4.150.0080.05812.34
5.4.140.0080.06312.02
5.4.130.0090.06212.01
5.4.120.0070.06511.97
5.4.110.0060.06011.97
5.4.100.0050.06211.96
5.4.90.0080.06311.96
5.4.80.0060.06311.96
5.4.70.0040.06211.96
5.4.60.0070.06611.96
5.4.50.0060.06511.96
5.4.40.0090.05611.95
5.4.30.0060.06011.95
5.4.20.0060.05911.95
5.4.10.0030.06111.94
5.4.00.0050.06211.43
5.3.290.0060.07312.80
5.3.280.0040.06812.71
5.3.270.0160.06112.72
5.3.260.0070.06612.72
5.3.250.0110.06912.72
5.3.240.0040.06712.71
5.3.230.0070.07012.71
5.3.220.0060.06712.68
5.3.210.0020.07812.68
5.3.200.0060.06812.68
5.3.190.0060.06912.68
5.3.180.0070.06412.68
5.3.170.0060.07312.67
5.3.160.0080.06512.67
5.3.150.0080.06412.67
5.3.140.0060.06412.66
5.3.130.0070.06812.66
5.3.120.0070.06712.66
5.3.110.0060.07112.66
5.3.100.0060.06412.12
5.3.90.0050.06812.09
5.3.80.0080.06312.07
5.3.70.0070.07412.07
5.3.60.0060.06412.07
5.3.50.0060.07012.00
5.3.40.0080.06412.00
5.3.30.0030.06711.94
5.3.20.0040.06811.72
5.3.10.0060.06211.69
5.3.00.0070.06311.68
5.2.170.0040.0629.18
5.2.160.0060.0589.18
5.2.150.0060.0599.18
5.2.140.0020.0609.18
5.2.130.0080.0579.13
5.2.120.0060.0559.13
5.2.110.0040.0579.14
5.2.100.0010.0619.14
5.2.90.0060.0559.14
5.2.80.0070.0589.13
5.2.70.0060.0659.13
5.2.60.0060.0559.09
5.2.50.0070.0549.05
5.2.40.0040.0629.04
5.2.30.0080.0569.01
5.2.20.0020.0598.99
5.2.10.0080.0488.91
5.2.00.0030.0578.77
5.1.60.0040.0528.06
5.1.50.0060.0518.06
5.1.40.0010.0608.04
5.1.30.0070.0538.39
5.1.20.0050.0598.41
5.1.10.0060.0548.14
5.1.00.0080.0568.13
5.0.50.0040.0806.62
5.0.40.0020.0756.47
5.0.30.0040.0926.29
5.0.20.0040.0746.26
5.0.10.0030.0766.24
5.0.00.0020.0886.23
4.4.90.0030.0674.78
4.4.80.0030.0694.75
4.4.70.0040.0674.75
4.4.60.0040.0674.75
4.4.50.0010.0704.77
4.4.40.0020.0844.71
4.4.30.0010.0704.76
4.4.20.0020.0724.85
4.4.10.0020.0714.85
4.4.00.0010.0844.76
4.3.110.0020.0774.67
4.3.100.0060.0644.67
4.3.90.0050.0654.63
4.3.80.0100.0744.59
4.3.70.0090.0634.63
4.3.60.0060.0654.62
4.3.50.0010.0724.63
4.3.40.0010.0794.54
4.3.30.0030.0743.28
4.3.20.0010.0703.25
4.3.10.0030.0723.22
4.3.00.0030.1477.16

preferences:
44.89 ms | 400 KiB | 5 Q