3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test='12345'; echo substr($test,0,4);

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)
8.3.60.0140.00716.38
8.3.50.0120.00716.40
8.3.40.0070.00718.61
8.3.30.0090.00918.64
8.3.20.0050.00318.70
8.3.10.0040.00420.36
8.3.00.0060.00319.13
8.2.180.0100.00716.50
8.2.170.0180.00022.96
8.2.160.0140.00721.05
8.2.150.0060.00324.18
8.2.140.0030.00724.66
8.2.130.0040.00426.16
8.2.120.0070.00719.83
8.2.110.0030.00619.14
8.2.100.0090.00317.84
8.2.90.0060.00319.27
8.2.80.0000.00817.97
8.2.70.0080.00017.63
8.2.60.0040.00417.80
8.2.50.0040.00418.07
8.2.40.0040.00418.28
8.2.30.0030.00518.06
8.2.20.0040.00417.54
8.2.10.0000.00717.54
8.2.00.0100.00317.53
8.1.280.0140.00325.92
8.1.270.0020.00524.66
8.1.260.0030.00626.35
8.1.250.0050.00328.09
8.1.240.0070.00322.19
8.1.230.0090.00318.82
8.1.220.0000.00817.74
8.1.210.0000.00918.77
8.1.200.0030.00617.23
8.1.190.0080.00017.13
8.1.180.0000.00918.10
8.1.170.0040.00418.87
8.1.160.0040.00418.79
8.1.150.0050.00318.57
8.1.140.0030.00717.27
8.1.130.0030.00317.84
8.1.120.0050.00217.31
8.1.110.0070.00017.46
8.1.100.0070.00017.29
8.1.90.0000.00717.38
8.1.80.0070.00017.43
8.1.70.0000.00817.36
8.1.60.0050.00317.46
8.1.50.0040.00417.39
8.1.40.0000.00817.46
8.1.30.0050.00217.45
8.1.20.0080.00017.59
8.1.10.0000.00717.55
8.1.00.0050.00217.38
8.0.300.0000.00718.77
8.0.290.0040.00416.58
8.0.280.0030.00318.35
8.0.270.0040.00417.28
8.0.260.0030.00316.82
8.0.250.0000.00716.85
8.0.240.0030.00616.97
8.0.230.0040.00416.79
8.0.220.0030.00316.89
8.0.210.0000.00716.87
8.0.200.0000.00716.85
8.0.190.0000.00716.88
8.0.180.0030.00316.76
8.0.170.0040.00416.84
8.0.160.0040.00416.86
8.0.150.0070.00016.76
8.0.140.0030.00716.84
8.0.130.0000.00613.23
8.0.120.0050.00316.71
8.0.110.0040.00416.77
8.0.100.0040.00416.64
8.0.90.0030.00316.70
8.0.80.0080.00716.84
8.0.70.0030.00416.63
8.0.60.0080.00016.72
8.0.50.0040.00416.67
8.0.30.0060.01516.89
8.0.20.0070.01317.03
8.0.10.0030.00316.81
8.0.00.0120.00516.49
7.4.330.0000.00513.05
7.4.320.0000.00616.44
7.4.300.0070.00016.54
7.4.290.0030.00316.58
7.4.280.0040.00416.56
7.4.270.0040.00516.35
7.4.260.0030.00313.17
7.4.250.0000.00816.33
7.4.240.0070.00016.30
7.4.230.0040.00416.29
7.4.220.0000.02416.59
7.4.210.0080.00716.51
7.4.200.0030.00316.42
7.4.190.0030.00316.59
7.4.160.0100.01016.26
7.4.150.0170.00616.31
7.4.140.0100.00816.54
7.4.130.0140.00516.33
7.4.120.0080.00816.46
7.4.110.0130.00316.49
7.4.100.0110.00716.64
7.4.90.0060.01316.64
7.4.80.0000.02016.28
7.4.70.0030.01316.32
7.4.60.0120.00916.37
7.4.50.0030.00316.24
7.4.40.0030.01016.50
7.4.30.0060.00916.43
7.4.00.0120.00314.76
7.3.330.0000.00613.12
7.3.320.0000.00512.87
7.3.310.0000.00716.00
7.3.300.0000.00616.09
7.3.290.0070.01116.17
7.3.280.0080.01116.16
7.3.270.0100.00716.38
7.3.260.0080.01016.33
7.3.250.0080.01116.27
7.3.240.0080.00816.23
7.3.230.0060.01216.21
7.3.210.0120.01216.23
7.3.200.0000.01619.39
7.3.190.0060.01116.34
7.3.180.0090.00616.23
7.3.170.0060.01316.29
7.3.160.0000.01516.50
7.3.120.0040.00814.95
7.2.330.0030.01416.59
7.2.320.0080.00916.43
7.2.310.0140.00716.29
7.2.300.0120.00616.50
7.2.290.0070.01016.60
7.2.00.0160.00718.90
7.1.100.0000.01217.84
7.1.70.0000.00816.89
7.1.60.0180.00719.40
7.1.50.0070.01316.71
7.1.00.0030.07722.42
7.0.200.0030.00316.67
7.0.140.0130.06722.21
7.0.120.0070.06322.18
7.0.60.0070.08019.91
7.0.50.0030.04317.82
7.0.40.0130.08320.24
7.0.30.0370.06720.21
7.0.20.0270.05720.16
7.0.10.0130.04320.17
7.0.00.0030.06320.17
5.6.280.0070.07021.14
5.6.210.0070.08320.60
5.6.200.0070.05318.18
5.6.190.0100.04320.41
5.6.180.0300.03320.61
5.6.170.0330.08020.50
5.6.160.0070.08320.70
5.6.150.0030.04018.13
5.6.140.0100.08018.21
5.6.130.0130.07718.12
5.6.120.0070.04321.13
5.6.110.0130.06720.98
5.6.100.0070.08721.00
5.6.90.0070.03720.96
5.6.80.0030.08020.38
5.6.70.4570.04020.36
5.5.350.0100.05320.43
5.5.340.0130.07718.02
5.5.330.0100.08720.14
5.5.320.0270.05020.31
5.5.310.0270.04320.29
5.5.300.0030.04017.89
5.5.290.0070.08017.91
5.5.280.0100.03320.89
5.5.270.0130.03720.86
5.5.260.0130.08720.66
5.5.250.0070.07720.58
5.5.240.0270.07720.27
5.4.450.0000.08719.38
5.4.440.0100.08319.50
5.4.430.0070.07319.44
5.4.420.0130.07719.11
5.4.410.0100.03318.98
5.4.400.0000.04019.19
5.4.390.0030.04019.08
5.4.380.0000.04019.14
5.4.370.0030.03719.12
5.4.360.0000.04019.14
5.4.350.0030.03719.14
5.4.340.0070.03319.18
5.4.320.0000.04018.92
5.4.310.0030.03718.81
5.4.300.0070.03319.00
5.4.290.0000.04019.18
5.4.280.0000.04018.79
5.4.270.0000.04319.14
5.4.260.0070.03319.12
5.4.250.0070.04019.17
5.4.240.0100.03018.93
5.4.230.0030.04019.18
5.4.220.0000.04019.17
5.4.210.0070.03319.14
5.4.200.0200.04319.17
5.4.190.0070.06319.09
5.4.180.0000.04319.16
5.4.170.0070.07719.07
5.4.160.0270.02319.11
5.4.150.0030.04019.12
5.4.140.0030.07716.29
5.4.130.0070.07016.32
5.4.120.0070.07716.24
5.4.110.0100.07016.39
5.4.100.0100.03316.43
5.4.90.0070.05016.30
5.4.80.0070.06016.13
5.4.70.0130.06716.27
5.4.60.0070.07016.39
5.4.50.0030.03716.36
5.4.40.0100.06716.27
5.4.30.0130.06316.29
5.4.20.0070.05316.25
5.4.10.0070.04316.34
5.4.00.0070.07315.79
5.3.290.0070.04314.59
5.3.280.0070.03314.52
5.3.270.0070.04014.55
5.3.260.0070.04014.52
5.3.250.0030.04714.54
5.3.240.0000.08314.53
5.3.230.0030.07014.55
5.3.220.0070.04314.50
5.3.210.0070.08014.48
5.3.200.0070.04314.44
5.3.190.0030.08014.50
5.3.180.0130.07014.51
5.3.170.0070.07014.50
5.3.160.0000.05014.49
5.3.150.0000.04714.64
5.3.140.0000.04314.37
5.3.130.0070.07014.63
5.3.120.0000.08714.52
5.3.110.0070.06314.48
5.3.100.0030.04014.05
5.3.90.0130.06713.82
5.3.80.0070.06013.98
5.3.70.0100.06713.96
5.3.60.0070.04013.93
5.3.50.0100.07013.95
5.3.40.0130.05713.92
5.3.30.0100.03713.83
5.3.20.0030.04713.70
5.3.10.0130.06713.59
5.3.00.0070.07313.73
5.2.170.0030.03711.29
5.2.160.0070.06011.00
5.2.150.0100.02711.08
5.2.140.0030.03311.10
5.2.130.0100.04010.98
5.2.120.0030.05311.18
5.2.110.0030.05711.17
5.2.100.0070.03710.99
5.2.90.0070.06010.95
5.2.80.0000.03710.97
5.2.70.0070.05011.09
5.2.60.0030.03710.87
5.2.50.0130.03010.94
5.2.40.0100.02710.88
5.2.30.0000.03010.84
5.2.20.0070.03011.04
5.2.10.0030.04310.90
5.2.00.0030.06310.70
5.1.60.0070.0339.95
5.1.50.0100.0209.93
5.1.40.0000.0279.81
5.1.30.0030.03010.32
5.1.20.0000.03010.23
5.1.10.0070.0579.96
5.1.00.0170.04310.02
5.0.50.0070.0338.38
5.0.40.0030.0278.37
5.0.30.0100.0538.21
5.0.20.0030.0438.19
5.0.10.0030.0438.22
5.0.00.0100.0578.12
4.4.90.0070.0237.80
4.4.80.0030.0377.80
4.4.70.0070.0307.80
4.4.60.0030.0237.80
4.4.50.0030.0307.80
4.4.40.0030.0537.80
4.4.30.0070.0177.80
4.4.20.0070.0237.80
4.4.10.0000.0377.80
4.4.00.0000.0477.80
4.3.110.0000.0377.80
4.3.100.0070.0277.80
4.3.90.0070.0177.80
4.3.80.0000.0407.80
4.3.70.0100.0277.80
4.3.60.0070.0277.80
4.3.50.0030.0207.80
4.3.40.0000.0437.80
4.3.30.0030.0207.80
4.3.20.0000.0407.80
4.3.10.0000.0377.80
4.3.00.0000.0337.80

preferences:
40.26 ms | 401 KiB | 5 Q