3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = "\"luka\""; if ($var[0] == '"') { substr($var, 1, -1); } echo $var;

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)
8.3.60.0100.01018.28
8.3.50.0170.00321.97
8.3.40.0090.00618.84
8.3.30.0090.00919.09
8.3.20.0040.00420.14
8.3.10.0030.00621.71
8.3.00.0040.00422.18
8.2.180.0160.00616.75
8.2.170.0110.00422.96
8.2.160.0100.00720.39
8.2.150.0050.00324.18
8.2.140.0070.00024.66
8.2.130.0040.01126.16
8.2.120.0030.00519.48
8.2.110.0060.00320.57
8.2.100.0040.00819.34
8.2.90.0040.00419.14
8.2.80.0040.00418.04
8.2.70.0060.00317.63
8.2.60.0000.00817.93
8.2.50.0040.00418.07
8.2.40.0000.00718.22
8.2.30.0050.00318.17
8.2.20.0040.00417.72
8.2.10.0040.00419.53
8.2.00.0000.00717.72
8.1.280.0140.00425.92
8.1.270.0000.00823.99
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0080.00023.91
8.1.230.0040.00719.14
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0000.00917.36
8.1.190.0050.00317.42
8.1.180.0030.00618.10
8.1.170.0040.00418.49
8.1.160.0040.00422.05
8.1.150.0040.00418.57
8.1.140.0000.00717.49
8.1.130.0000.00717.81
8.1.120.0000.00717.41
8.1.110.0000.00717.47
8.1.100.0000.00717.36
8.1.90.0000.00717.46
8.1.80.0000.00817.45
8.1.70.0040.00417.32
8.1.60.0040.00717.59
8.1.50.0040.00417.38
8.1.40.0040.00417.52
8.1.30.0080.00017.52
8.1.20.0000.00917.64
8.1.10.0050.00217.56
8.1.00.0040.00417.54
8.0.300.0040.00418.77
8.0.290.0050.00217.16
8.0.280.0040.00418.40
8.0.270.0080.00017.24
8.0.260.0030.00316.80
8.0.250.0030.00316.95
8.0.240.0070.00016.88
8.0.230.0090.00016.72
8.0.220.0000.00616.76
8.0.210.0030.00316.78
8.0.200.0000.00816.83
8.0.190.0050.00316.89
8.0.180.0040.00416.81
8.0.170.0080.00016.81
8.0.160.0050.00316.89
8.0.150.0050.00216.77
8.0.140.0030.00416.69
8.0.130.0000.00613.30
8.0.120.0000.00716.81
8.0.110.0030.00516.92
8.0.100.0070.00016.75
8.0.90.0070.00016.79
8.0.80.0060.01016.76
8.0.70.0050.00216.91
8.0.60.0040.00416.78
8.0.50.0040.00416.76
8.0.30.0080.01117.02
8.0.20.0110.00717.40
8.0.10.0070.00016.86
8.0.00.0120.00916.88
7.4.330.0050.00015.10
7.4.320.0000.00616.52
7.4.300.0030.00316.61
7.4.290.0070.00016.56
7.4.280.0000.00716.58
7.4.270.0030.00516.61
7.4.260.0000.00816.57
7.4.250.0050.00316.48
7.4.240.0000.00716.46
7.4.230.0060.00016.29
7.4.220.0030.01316.52
7.4.210.0080.00816.55
7.4.200.0040.00216.43
7.4.190.0000.00716.68
7.4.160.0130.00916.44
7.4.150.0030.01317.40
7.4.140.0130.00517.86
7.4.130.0080.01116.54
7.4.120.0060.01416.55
7.4.110.0090.00916.49
7.4.100.0100.01416.46
7.4.90.0160.00316.42
7.4.80.0030.01719.39
7.4.70.0070.01016.51
7.4.60.0100.00616.55
7.4.50.0060.00316.45
7.4.40.0100.00722.77
7.4.30.0130.00716.29
7.4.00.0070.00714.90
7.3.330.0060.00013.16
7.3.320.0050.00013.15
7.3.310.0000.00716.33
7.3.300.0030.00316.30
7.3.290.0060.00916.24
7.3.280.0080.00716.24
7.3.270.0070.01017.40
7.3.260.0140.00316.47
7.3.250.0090.00916.40
7.3.240.0110.00716.65
7.3.230.0130.01016.50
7.3.210.0030.01316.20
7.3.200.0080.00819.39
7.3.190.0090.00916.29
7.3.180.0040.01216.32
7.3.170.0090.00616.64
7.3.160.0140.00716.32
7.3.120.0120.00314.45
7.2.330.0150.00316.72
7.2.320.0150.00816.41
7.2.310.0070.01016.44
7.2.300.0100.01316.45
7.2.290.0030.01316.43
7.2.00.0000.01219.24
7.1.100.0000.01118.24
7.1.70.0000.01517.13
7.1.60.0040.02119.82
7.1.50.0030.02016.93
7.1.00.0100.07022.44
7.0.200.0080.00316.82
7.0.140.0030.07322.07
7.0.60.0100.04020.04
7.0.50.0030.04717.82
7.0.40.0130.07020.41
7.0.30.0330.06720.32
7.0.20.0230.04020.18
7.0.10.0200.04020.09
7.0.00.0000.04320.12
5.6.280.0030.07320.98
5.6.210.0030.08320.60
5.6.200.0030.05018.12
5.6.190.0130.05320.57
5.6.180.4830.04020.61
5.6.170.0270.03320.38
5.6.160.0000.04720.48
5.6.150.0130.07718.11
5.6.140.0130.03718.23
5.6.130.0030.07718.18
5.6.120.0070.05721.05
5.6.110.0130.07020.98
5.6.100.0070.03720.88
5.6.90.0170.07721.01
5.6.80.0070.08320.38
5.6.70.0330.06720.49
5.5.350.0030.08320.46
5.5.340.0100.05317.98
5.5.330.0130.07720.21
5.5.320.0230.04720.30
5.5.310.0330.07320.50
5.5.300.0030.04018.07
5.5.290.0000.04317.91
5.5.280.0130.07720.84
5.5.270.0070.05020.79
5.5.260.0070.08020.95
5.5.250.0100.06720.49
5.5.240.0170.02720.26
5.4.450.0070.06319.45
5.4.440.0200.06018.92
5.4.430.0000.06719.30
5.4.420.0200.05719.39
5.4.410.0100.06319.35
5.4.400.1670.00018.75
5.4.390.1800.00018.78
5.4.380.0300.07718.61
5.4.370.0400.04318.71
5.4.360.0270.05018.70
5.4.350.0270.06018.50
5.4.340.0270.04318.46
5.4.320.0060.03712.46
5.4.310.0090.05212.45
5.4.300.0050.03912.45
5.4.290.0070.03612.45
5.4.280.0020.03812.35
5.4.270.0230.06318.92
5.4.260.0130.07319.00
5.4.250.0030.06318.99
5.4.240.0270.05718.77
5.4.230.0070.06018.80
5.4.220.0170.05018.72
5.4.210.0170.05318.71
5.4.200.0170.04718.89
5.4.190.0070.07718.86
5.4.180.0170.06318.87
5.4.170.0130.04718.69
5.4.160.0070.09018.82
5.4.150.0170.05018.73
5.4.140.0100.06016.29
5.4.130.0030.06016.50
5.4.120.0070.07716.30
5.4.110.0070.08716.52
5.4.100.0170.06716.42
5.4.90.0070.05716.26
5.4.80.0170.05716.41
5.4.70.0130.06316.44
5.4.60.0130.04316.32
5.4.50.0030.05716.40
5.4.40.0070.05316.57
5.4.30.0030.06316.26
5.4.20.0130.06016.48
5.4.10.0130.06716.35
5.4.00.0100.05015.68
5.3.290.0080.03812.80
5.3.280.0170.06014.47
5.3.270.0100.05714.30
5.3.260.0130.05714.52
5.3.250.0070.05714.61
5.3.240.0070.05714.61
5.3.230.0070.05714.61
5.3.220.0130.05714.45
5.3.210.0070.08014.57
5.3.200.0000.07714.57
5.3.190.0130.05314.27
5.3.180.0100.05014.44
5.3.170.0170.06314.57
5.3.160.0170.07014.43
5.3.150.0130.04714.57
5.3.140.0100.07014.64
5.3.130.0030.06714.56
5.3.120.0130.05014.70
5.3.110.0000.06014.59
5.3.100.0200.05014.18
5.3.90.0070.06313.79
5.3.80.0030.05714.11
5.3.70.0170.06313.90
5.3.60.0100.05713.93
5.3.50.0030.05314.10
5.3.40.0100.05713.95
5.3.30.0130.05014.05
5.3.20.0070.05013.78
5.3.10.0100.06313.52
5.3.00.0070.05013.52
5.2.170.0030.05011.15
5.2.160.0070.04011.30
5.2.150.0070.04311.13
5.2.140.0100.05311.02
5.2.130.0070.04311.04
5.2.120.0100.03710.98
5.2.110.0170.03711.11
5.2.100.0000.04711.02
5.2.90.0100.03711.01
5.2.80.0130.05311.10
5.2.70.0070.04711.08
5.2.60.0070.04311.14
5.2.50.0130.03311.02
5.2.40.0000.04711.01
5.2.30.0100.05711.08
5.2.20.0100.05310.97
5.2.10.0170.03310.74
5.2.00.0170.04310.88
5.1.60.0000.0379.84
5.1.50.0070.03710.04
5.1.40.0030.0339.93
5.1.30.0200.03710.48
5.1.20.0070.03710.28
5.1.10.0000.04010.11
5.1.00.0170.0309.91
5.0.50.0000.0438.56
5.0.40.0100.0308.28
5.0.30.0000.0637.99
5.0.20.0030.0338.27
5.0.10.0030.0308.08
5.0.00.0070.0408.15
4.4.90.0030.0277.35
4.4.80.0070.0177.35
4.4.70.0000.0277.35
4.4.60.0030.0207.35
4.4.50.0030.0237.35
4.4.40.0000.0437.35
4.4.30.0070.0207.35
4.4.20.0100.0277.35
4.4.10.0030.0277.35
4.4.00.0030.0407.35
4.3.110.0100.0277.35
4.3.100.0070.0177.35
4.3.90.0070.0277.35
4.3.80.0000.0477.35
4.3.70.0030.0307.35
4.3.60.0030.0237.35
4.3.50.0030.0337.35
4.3.40.0030.0407.35
4.3.30.0030.0277.35
4.3.20.0000.0307.35
4.3.10.0000.0277.35
4.3.00.0000.0235.61

preferences:
42.34 ms | 401 KiB | 5 Q