3v4l.org

run code in 300+ PHP versions simultaneously
<?php //$string = "-Lorem Ipsum"; // 1 //$string = "--Lorem Ipsum"; // 2 //$string = "---Lorem Ipsum"; // 3 $string = "--Lorem-Ipsum"; // 2 $search="-"; $i=0; while($string[$i]==$search) { $i++; } echo "Found $i instances at the start of the string.";

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)
8.3.60.0110.00416.50
8.3.50.0120.00722.75
8.3.40.0140.00018.69
8.3.30.0120.00319.18
8.3.20.0070.00020.04
8.3.10.0060.00619.59
8.3.00.0080.00019.38
8.2.180.0090.00916.75
8.2.170.0130.00322.96
8.2.160.0120.00322.11
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0000.00721.01
8.2.110.0000.00920.38
8.2.100.0090.00318.09
8.2.90.0000.00719.41
8.2.80.0040.00417.97
8.2.70.0000.00817.47
8.2.60.0040.00417.93
8.2.50.0040.00418.07
8.2.40.0030.00618.22
8.2.30.0040.00419.35
8.2.20.0070.00017.77
8.2.10.0070.00017.99
8.2.00.0000.00717.58
8.1.280.0070.00725.92
8.1.270.0080.00023.91
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0040.00423.97
8.1.230.0040.00719.01
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0070.00517.25
8.1.190.0060.00317.00
8.1.180.0040.00418.10
8.1.170.0040.00418.44
8.1.160.0070.00021.92
8.1.150.0070.00318.88
8.1.140.0000.00717.44
8.1.130.0040.00417.73
8.1.120.0000.00817.50
8.1.110.0030.00517.44
8.1.100.0040.00417.45
8.1.90.0030.00317.51
8.1.80.0000.00717.45
8.1.70.0030.00317.31
8.1.60.0040.00417.56
8.1.50.0000.00817.42
8.1.40.0030.00517.39
8.1.30.0000.00817.62
8.1.20.0050.00317.47
8.1.10.0040.00417.47
8.1.00.0040.00417.35
8.0.300.0050.00318.77
8.0.290.0030.00516.63
8.0.280.0000.00718.43
8.0.270.0070.00017.09
8.0.260.0000.00717.23
8.0.250.0030.00316.95
8.0.240.0000.00616.95
8.0.230.0000.00716.98
8.0.220.0000.00716.91
8.0.210.0040.00416.92
8.0.200.0000.00616.83
8.0.190.0050.00317.00
8.0.180.0050.00316.96
8.0.170.0080.00016.95
8.0.160.0000.00716.94
8.0.150.0050.00316.75
8.0.140.0000.00716.74
8.0.130.0000.00513.29
8.0.120.0040.00416.88
8.0.110.0040.00416.89
8.0.100.0040.00416.93
8.0.90.0000.00716.72
8.0.80.0050.02216.91
8.0.70.0000.00716.81
8.0.60.0050.00316.76
8.0.50.0000.00816.86
8.0.30.0110.00817.01
8.0.20.0090.01017.40
8.0.10.0000.00817.01
8.0.00.0120.00916.78
7.4.330.0060.00015.00
7.4.320.0060.00016.39
7.4.300.0070.00016.56
7.4.290.0020.00516.55
7.4.280.0030.00516.34
7.4.270.0030.00316.60
7.4.260.0080.00416.50
7.4.250.0000.00716.50
7.4.240.0040.00316.46
7.4.230.0040.00416.40
7.4.220.0130.00616.57
7.4.210.0030.01116.45
7.4.200.0050.00316.69
7.4.160.0100.00516.55
7.4.150.0130.00617.40
7.4.140.0160.00517.86
7.4.130.0080.00916.42
7.4.120.0080.00916.48
7.4.110.0090.00916.59
7.4.100.0120.00416.38
7.4.90.0060.01016.58
7.4.80.0060.00919.39
7.4.70.0100.00716.43
7.4.60.0130.00716.59
7.4.50.0000.00816.55
7.4.40.0160.00616.55
7.4.30.0130.00316.61
7.4.00.0130.00314.81
7.3.330.0000.00513.30
7.3.320.0000.00513.08
7.3.310.0000.00716.38
7.3.300.0000.00616.38
7.3.290.0060.00916.31
7.3.280.0090.00616.30
7.3.270.0110.00717.40
7.3.260.0100.01316.25
7.3.250.0080.00816.42
7.3.240.0040.01216.34
7.3.230.0190.00316.52
7.3.210.0040.01916.34
7.3.200.0130.00319.39
7.3.190.0160.00616.30
7.3.180.0070.00816.46
7.3.170.0120.00916.60
7.3.160.0090.00916.38
7.2.330.0150.00316.51
7.2.320.0140.00316.55
7.2.310.0160.00716.75
7.2.300.0040.01816.48
7.2.290.0100.00616.47
7.1.70.0040.00416.99
7.1.60.0090.01219.46
7.1.50.0130.00916.92
7.1.00.0030.07722.29
7.0.200.0180.00414.90
7.0.140.0000.07722.04
7.0.60.0100.05719.82
7.0.50.0100.08017.86
7.0.40.0100.07020.23
7.0.30.0230.06320.16
7.0.20.0330.07720.04
7.0.10.0100.08720.09
7.0.00.0100.08019.99
5.6.280.0030.07320.81
5.6.210.0170.07020.52
5.6.200.0000.08718.21
5.6.190.0100.08320.42
5.6.180.0330.07320.43
5.6.170.0230.04720.62
5.6.160.0100.06720.71
5.6.150.0030.08718.15
5.6.140.0070.05018.15
5.6.130.0170.07318.21
5.6.120.0070.05021.11
5.6.110.0130.08020.97
5.6.100.0100.08021.03
5.6.90.0130.07720.96
5.6.80.0030.07020.35
5.5.350.0230.04320.36
5.5.340.0070.04318.02
5.5.330.0070.05020.30
5.5.320.0070.05020.30
5.5.310.0300.07720.17
5.5.300.0100.04718.02
5.5.290.0000.04317.95
5.5.280.0030.05720.79
5.5.270.0100.05020.83
5.5.260.0200.07320.75
5.5.250.0100.03720.78
5.5.240.0000.05020.36
5.4.450.0530.05319.13
5.4.440.0730.05319.27
5.4.430.0600.06019.31
5.4.420.0830.09719.27
5.4.410.0800.05319.11
5.4.400.0170.04719.13
5.4.390.0500.06019.28
5.4.380.0330.06718.66
5.4.370.0370.07018.64
5.4.360.0200.06318.62
5.4.350.0300.05318.57
5.4.340.0400.06718.76
5.4.320.0040.03812.45
5.4.310.0060.03712.45
5.4.300.0090.03812.45
5.4.290.0060.03712.45
5.4.280.0100.03712.34
5.4.270.0060.03912.34
5.4.260.0060.04412.34
5.4.250.0080.03912.34
5.4.240.0080.04212.35
5.4.230.0070.04312.34
5.4.220.0050.03612.34
5.4.210.0080.03812.34
5.4.200.0070.04912.34
5.4.190.0030.03912.34
5.4.180.0080.03512.33
5.4.170.0070.04212.35
5.4.160.0090.03712.34
5.4.150.0080.03812.34
5.4.140.0080.03512.02
5.4.130.0080.03712.01
5.4.120.0070.03311.96
5.4.110.0070.03411.96
5.4.100.0030.03811.96
5.4.90.0050.03711.96
5.4.80.0040.03911.96
5.4.70.0060.03411.96
5.4.60.0050.03511.96
5.4.50.0050.03511.96
5.4.40.0090.03011.95
5.4.30.0040.03611.95
5.4.20.0040.03611.95
5.4.10.0080.03411.95
5.4.00.0030.04111.43
5.3.290.0050.03812.80
5.3.280.0070.03512.71
5.3.270.0050.04512.73
5.3.260.0080.03412.72
5.3.250.0050.03812.72
5.3.240.0110.03912.72
5.3.230.0070.03612.71
5.3.220.0070.04212.68
5.3.210.0100.03712.68
5.3.200.0060.03512.68
5.3.190.0050.03712.68
5.3.180.0020.03912.67
5.3.170.0080.03312.67
5.3.160.0060.04312.67
5.3.150.0030.04412.67
5.3.140.0110.03312.66
5.3.130.0080.04112.66
5.3.120.0080.03412.66
5.3.110.0050.03912.66
5.3.100.0060.03712.12
5.3.90.0050.03512.08
5.3.80.0080.03312.07
5.3.70.0050.03712.08
5.3.60.0070.03312.06
5.3.50.0050.03512.00
5.3.40.0060.03512.00
5.3.30.0060.03611.94
5.3.20.0030.04011.72
5.3.10.0040.03611.69
5.3.00.0030.03811.68
5.2.170.0040.0299.18
5.2.160.0050.0279.18
5.2.150.0060.0289.18
5.2.140.0060.0299.17
5.2.130.0050.0289.14
5.2.120.0020.0339.14
5.2.110.0060.0289.14
5.2.100.0050.0299.14
5.2.90.0080.0339.14
5.2.80.0040.0309.13
5.2.70.0030.0329.13
5.2.60.0020.0329.09
5.2.50.0020.0329.05
5.2.40.0070.0269.03
5.2.30.0020.0359.01
5.2.20.0080.0289.00
5.2.10.0030.0308.94
5.2.00.0070.0288.79
5.1.60.0070.0278.08
5.1.50.0020.0278.08
5.1.40.0040.0248.05
5.1.30.0060.0288.41
5.1.20.0050.0258.43
5.1.10.0060.0308.16
5.1.00.0030.0288.15
5.0.50.0010.0236.63
5.0.40.0040.0186.49
5.0.30.0010.0326.30
5.0.20.0010.0236.27
5.0.10.0050.0176.25
5.0.00.0030.0316.25
4.4.90.0040.0134.78
4.4.80.0040.0184.75
4.4.70.0070.0134.76
4.4.60.0010.0174.76
4.4.50.0060.0144.77
4.4.40.0010.0264.71
4.4.30.0030.0184.76
4.4.20.0020.0174.84
4.4.10.0010.0214.85
4.4.00.0080.0234.76
4.3.110.0010.0234.67
4.3.100.0020.0204.66
4.3.90.0030.0134.64
4.3.80.0040.0274.58
4.3.70.0060.0114.63
4.3.60.0020.0154.63
4.3.50.0010.0174.63
4.3.40.0020.0234.54
4.3.30.0020.0153.30
4.3.20.0010.0163.28
4.3.10.0020.0153.24
4.3.00.0130.0207.90

preferences:
40.57 ms | 401 KiB | 5 Q