3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo substr('fa-2012', 3);

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)
8.3.60.0130.00716.61
8.3.50.0120.00617.26
8.3.40.0110.00418.77
8.3.30.0030.01018.41
8.3.20.0040.00418.48
8.3.10.0050.00320.53
8.3.00.0030.00619.25
8.2.180.0140.00416.63
8.2.170.0090.00622.96
8.2.160.0130.00020.90
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0050.00319.13
8.2.110.0090.00021.11
8.2.100.0040.00717.91
8.2.90.0050.00519.10
8.2.80.0000.00719.28
8.2.70.0000.00917.63
8.2.60.0070.00417.80
8.2.50.0050.00318.07
8.2.40.0000.00718.03
8.2.30.0040.00417.99
8.2.20.0040.00417.64
8.2.10.0090.00017.42
8.2.00.0050.00217.45
8.1.280.0160.00425.92
8.1.270.0040.00424.66
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0100.00022.48
8.1.230.0050.00520.88
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0000.00717.38
8.1.180.0000.00818.10
8.1.170.0000.00818.68
8.1.160.0040.00418.83
8.1.150.0000.00718.50
8.1.140.0000.00717.38
8.1.130.0070.00017.67
8.1.120.0000.00817.24
8.1.110.0030.00617.21
8.1.100.0000.00717.25
8.1.90.0000.00717.33
8.1.80.0050.00217.26
8.1.70.0050.00317.19
8.1.60.0040.00417.45
8.1.50.0000.00717.29
8.1.40.0040.00417.23
8.1.30.0080.00017.40
8.1.20.0030.00617.49
8.1.10.0050.00317.43
8.1.00.0080.00017.26
8.0.300.0070.00019.81
8.0.290.0080.00016.63
8.0.280.0030.00318.41
8.0.270.0030.00317.11
8.0.260.0070.00018.36
8.0.250.0070.00016.76
8.0.240.0070.00016.77
8.0.230.0000.00716.85
8.0.220.0030.00516.71
8.0.210.0050.00216.77
8.0.200.0040.00416.79
8.0.190.0030.00316.81
8.0.180.0000.00716.76
8.0.170.0040.00416.79
8.0.160.0070.00016.68
8.0.150.0040.00416.72
8.0.140.0060.00316.71
8.0.130.0050.00013.17
8.0.120.0040.00416.74
8.0.110.0000.00816.75
8.0.100.0040.00416.54
8.0.90.0050.00216.72
8.0.80.0080.00616.82
8.0.70.0050.00316.64
8.0.60.0040.00416.66
8.0.50.0000.00816.66
8.0.30.0100.00917.05
8.0.20.0120.01016.79
8.0.10.0030.00316.91
8.0.00.0080.01116.52
7.4.330.0050.00012.82
7.4.320.0000.00716.41
7.4.300.0000.00716.43
7.4.290.0070.00016.41
7.4.280.0000.00716.36
7.4.270.0000.00716.32
7.4.260.0030.00313.08
7.4.250.0050.00316.42
7.4.240.0040.00416.38
7.4.230.0000.00716.34
7.4.220.0090.00916.39
7.4.210.0050.01016.43
7.4.200.0040.00416.27
7.4.190.0040.00416.55
7.4.160.0080.00816.48
7.4.150.0070.01016.44
7.4.140.0080.00916.29
7.4.130.0070.01016.54
7.4.120.0090.00716.35
7.4.110.0130.00316.32
7.4.100.0120.00916.56
7.4.90.0000.01816.37
7.4.80.0030.01319.39
7.4.70.0100.00716.65
7.4.60.0090.00916.20
7.4.50.0030.00616.57
7.4.40.0070.00716.17
7.4.30.0120.00316.38
7.4.00.0110.00715.04
7.3.330.0030.00312.99
7.3.320.0060.00013.11
7.3.310.0000.00616.26
7.3.300.0000.00616.11
7.3.290.0140.00316.17
7.3.280.0100.01016.10
7.3.270.0070.01016.44
7.3.260.0130.00616.10
7.3.250.0050.01116.24
7.3.240.0080.00816.21
7.3.230.0140.00716.42
7.3.210.0130.00316.25
7.3.200.0070.01016.32
7.3.190.0120.00916.27
7.3.180.0120.00416.27
7.3.170.0100.01016.05
7.3.160.0070.01016.08
7.3.120.0100.00314.70
7.3.10.0060.00616.56
7.3.00.0090.00316.32
7.2.330.0140.00316.52
7.2.320.0110.01116.53
7.2.310.0030.01516.34
7.2.300.0030.01416.44
7.2.290.0130.01016.41
7.2.130.0060.00316.58
7.2.120.0030.01016.91
7.2.110.0060.00816.89
7.2.100.0030.01416.95
7.2.90.0040.01116.79
7.2.80.0120.00316.55
7.2.70.0040.01216.89
7.2.60.0080.00616.72
7.2.50.0090.00316.83
7.2.40.0090.00616.66
7.2.30.0000.01116.55
7.2.20.0000.01016.99
7.2.10.0100.00316.82
7.2.00.0080.00618.04
7.1.250.0120.00315.49
7.1.200.0070.00415.35
7.1.100.0040.00818.15
7.1.70.0000.00816.94
7.1.60.0090.00319.40
7.1.50.0070.01416.50
7.1.00.0000.08022.46
7.0.200.0410.00714.54
7.0.140.0030.07022.18
7.0.120.0000.07722.06
7.0.60.0170.07019.77
7.0.50.0100.06717.82
7.0.40.0130.08019.98
7.0.30.0300.07720.13
7.0.20.0200.03720.04
7.0.10.0230.08020.04
7.0.00.0030.04720.16
5.6.280.0030.09321.14
5.6.210.0070.08020.60
5.6.200.0130.07318.13
5.6.190.0030.04720.57
5.6.180.0230.07020.77
5.6.170.0200.05020.42
5.6.160.0000.05720.48
5.6.150.0070.07718.11
5.6.140.0030.09018.18
5.6.130.0070.04318.21
5.6.120.0100.06021.00
5.6.110.0170.05721.11
5.6.100.0030.04021.02
5.6.90.0000.05720.96
5.6.80.0070.07720.53
5.6.70.4230.03720.38
5.5.350.0270.04020.38
5.5.340.0030.03717.88
5.5.330.0070.04320.19
5.5.320.0130.05020.21
5.5.310.0370.07320.33
5.5.300.0130.06318.02
5.5.290.0030.04317.94
5.5.280.0130.08020.86
5.5.270.0100.08320.75
5.5.260.0130.06020.79
5.5.250.0100.06320.68
5.5.240.0070.07720.14
5.4.450.0030.08019.41
5.4.440.0070.04319.48
5.4.430.0070.08019.48
5.4.420.0070.04319.42
5.4.410.0030.06019.37
5.4.400.0130.07719.16
5.4.390.0100.07319.17
5.4.380.0200.05019.15
5.4.370.0100.03319.00
5.4.360.0100.07019.18
5.4.350.0100.04018.79
5.4.340.0000.04319.15
5.4.320.0000.04319.14
5.4.310.0100.06319.08
5.4.300.0030.06318.91
5.4.290.0100.07319.20
5.4.280.0100.07719.17
5.4.270.0130.04019.17
5.4.260.0000.08718.92
5.4.250.0030.08018.80
5.4.240.0070.07019.17
5.4.230.0170.04019.13
5.4.220.0000.06719.17
5.4.210.0100.07019.07
5.4.200.0070.04319.13
5.4.190.0030.06318.93
5.4.180.0030.07719.16
5.4.170.0030.04018.91
5.4.160.0030.07018.89
5.4.150.0100.05318.89
5.4.140.0070.07716.25
5.4.130.0070.04316.44
5.4.120.0030.07316.24
5.4.110.0000.07716.61
5.4.100.0000.05016.25
5.4.90.0070.07316.39
5.4.80.0030.07316.35
5.4.70.0000.06716.35
5.4.60.0030.07716.34
5.4.50.0170.06316.24
5.4.40.0100.06716.57
5.4.30.0070.05016.31
5.4.20.0000.04016.22
5.4.10.0030.06316.24
5.4.00.0030.07715.70
5.3.290.0000.07014.58
5.3.280.0000.07714.51
5.3.270.0100.07314.44
5.3.260.0070.05014.53
5.3.250.0030.04714.55
5.3.240.0130.04314.54
5.3.230.0130.02714.54
5.3.220.0000.04314.35
5.3.210.0070.05014.49
5.3.200.0030.04714.50
5.3.190.0070.07314.53
5.3.180.0030.04714.46
5.3.170.0170.06014.57
5.3.160.0000.04714.48
5.3.150.0100.04314.65
5.3.140.0000.05014.49
5.3.130.0070.08014.63
5.3.120.0070.04714.46
5.3.110.0100.07314.47
5.3.100.0000.08013.82
5.3.90.0070.05013.85
5.3.80.0100.03314.02
5.3.70.0070.03714.03
5.3.60.0030.04313.98
5.3.50.0100.06313.87
5.3.40.0030.04313.88
5.3.30.0000.04313.83
5.3.20.0070.03713.65
5.3.10.0100.07013.61
5.3.00.0030.03713.56
5.2.170.0100.05311.12
5.2.160.0030.05310.99
5.2.150.0100.02711.07
5.2.140.0130.04711.02
5.2.130.0030.03011.10
5.2.120.0030.04710.98
5.2.110.0130.05310.99
5.2.100.0030.03011.04
5.2.90.0070.05710.95
5.2.80.0100.03710.99
5.2.70.0030.04010.97
5.2.60.0070.03011.02
5.2.50.0070.03710.91
5.2.40.0130.04010.89
5.2.30.0000.04010.90
5.2.20.0030.03710.94
5.2.10.0070.03310.89
5.2.00.0000.03010.71
5.1.60.0000.02710.14
5.1.50.0030.0239.98
5.1.40.0000.02710.12
5.1.30.0070.02010.32
5.1.20.0000.03710.39
5.1.10.0030.0539.96
5.1.00.0070.05310.04
5.0.50.0000.0278.38
5.0.40.0070.0138.41
5.0.30.0000.0708.16
5.0.20.0030.0378.23
5.0.10.0070.0408.14
5.0.00.0100.0608.21
4.4.90.0000.0207.53
4.4.80.0000.0177.53
4.4.70.0000.0237.53
4.4.60.0000.0177.53
4.4.50.0030.0337.53
4.4.40.0030.0337.53
4.4.30.0030.0137.53
4.4.20.0000.0237.53
4.4.10.0030.0337.53
4.4.00.0030.0307.53
4.3.110.0030.0177.53
4.3.100.0030.0237.53
4.3.90.0070.0337.53
4.3.80.0000.0507.53
4.3.70.0030.0337.53
4.3.60.0070.0207.53
4.3.50.0070.0177.53
4.3.40.0070.0277.53
4.3.30.0000.0237.53
4.3.20.0000.0377.53
4.3.10.0030.0307.53
4.3.00.0000.0377.53

preferences:
50.08 ms | 401 KiB | 5 Q