3v4l.org

run code in 300+ PHP versions simultaneously
<?php $utf8string = 'ASCIIユーテ8hello123等々'; $var = 'hello123'; $pos = strpos($utf8string, $var); if ($pos!==false) { echo substr($utf8string, 0, $pos); }

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)
8.3.60.0060.00917.93
8.3.50.0120.00821.93
8.3.40.0110.01118.67
8.3.30.0170.00018.82
8.3.20.0080.00020.22
8.3.10.0090.00023.52
8.3.00.0050.00320.66
8.2.180.0040.01116.38
8.2.170.0070.00722.96
8.2.160.0070.00721.91
8.2.150.0040.00424.18
8.2.140.0150.00024.66
8.2.130.0000.00726.16
8.2.120.0050.00317.38
8.2.110.0000.00822.31
8.2.100.0000.01117.72
8.2.90.0040.00419.08
8.2.80.0000.00817.97
8.2.70.0030.00617.50
8.2.60.0030.00517.80
8.2.50.0030.00518.07
8.2.40.0000.00920.07
8.2.30.0000.00717.94
8.2.20.0050.00317.57
8.2.10.0040.00419.42
8.2.00.0000.00717.54
8.1.280.0060.01525.92
8.1.270.0040.00423.96
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0030.00723.79
8.1.230.0040.00719.01
8.1.220.0040.00417.79
8.1.210.0050.00318.77
8.1.200.0030.00617.23
8.1.190.0030.00617.30
8.1.180.0000.00818.10
8.1.170.0040.00418.50
8.1.160.0000.00721.95
8.1.150.0050.00518.57
8.1.140.0020.00517.41
8.1.130.0030.00317.73
8.1.120.0000.00717.26
8.1.110.0050.00217.41
8.1.100.0040.00417.38
8.1.90.0000.00817.42
8.1.80.0030.00317.36
8.1.70.0030.00317.37
8.1.60.0000.00817.48
8.1.50.0000.00817.41
8.1.40.0000.00717.48
8.1.30.0040.00417.49
8.1.20.0000.00817.59
8.1.10.0030.00517.51
8.1.00.0000.00717.43
8.0.300.0050.00318.77
8.0.290.0000.00717.16
8.0.280.0000.00718.43
8.0.270.0040.00417.16
8.0.260.0040.00416.76
8.0.250.0030.00316.95
8.0.240.0000.00716.84
8.0.230.0040.00416.92
8.0.220.0040.00416.76
8.0.210.0050.00216.85
8.0.200.0000.00816.88
8.0.190.0050.00216.81
8.0.180.0000.00716.81
8.0.170.0030.00516.85
8.0.160.0000.00716.85
8.0.150.0030.00516.68
8.0.140.0000.00716.73
8.0.130.0000.00513.20
8.0.120.0040.00416.69
8.0.110.0030.00516.84
8.0.100.0050.00216.71
8.0.90.0030.00316.80
8.0.80.0120.00916.73
8.0.70.0040.00416.71
8.0.60.0000.00716.82
8.0.50.0040.00416.81
8.0.30.0090.01216.96
8.0.20.0130.00617.40
8.0.10.0040.00416.75
8.0.00.0100.00716.84
7.4.330.0000.00515.00
7.4.320.0030.00316.59
7.4.300.0000.00616.64
7.4.290.0070.00016.50
7.4.280.0090.00016.57
7.4.270.0030.00316.35
7.4.260.0000.00716.51
7.4.250.0000.00716.61
7.4.240.0080.00016.52
7.4.230.0040.00416.54
7.4.220.0100.00716.63
7.4.210.0100.00416.61
7.4.200.0000.00716.67
7.4.190.0040.00416.63
7.4.160.0030.01316.74
7.4.150.0090.00917.40
7.4.140.0130.00717.86
7.4.130.0140.00416.50
7.4.120.0090.00716.55
7.4.110.0130.00916.41
7.4.100.0100.00716.44
7.4.90.0140.00816.49
7.4.80.0070.01116.47
7.4.70.0060.01016.52
7.4.60.0130.00316.57
7.4.50.0000.00816.29
7.4.40.0040.01122.77
7.4.30.0070.01416.25
7.4.00.0070.00714.57
7.3.330.0030.00313.10
7.3.320.0000.00612.93
7.3.310.0040.00416.06
7.3.300.0030.00316.23
7.3.290.0080.00916.15
7.3.280.0070.00916.17
7.3.270.0160.00317.40
7.3.260.0030.01316.54
7.3.250.0130.00616.47
7.3.240.0110.00616.17
7.3.230.0100.01316.62
7.3.210.0100.01016.18
7.3.200.0160.00619.39
7.3.190.0080.00816.40
7.3.180.0000.01716.46
7.3.170.0080.00716.29
7.3.160.0060.01016.52
7.3.120.0040.01114.39
7.2.330.0070.01116.49
7.2.320.0030.01416.72
7.2.310.0090.00916.59
7.2.300.0090.00916.58
7.2.290.0150.00616.36
7.2.00.0000.01019.32
7.1.100.0030.01017.93
7.1.70.0000.00917.29
7.1.60.0060.01919.32
7.1.50.0160.01334.79
7.1.00.0030.07322.36
7.0.200.0000.00716.56
7.0.140.0070.07021.95
7.0.80.0700.08319.91
7.0.70.0470.05019.93
7.0.60.0570.05020.01
7.0.50.0470.07720.21
7.0.40.0030.04320.07
7.0.30.0070.04020.10
7.0.20.0070.04720.08
7.0.10.0200.05020.09
7.0.00.0030.04320.15
5.6.280.0000.07721.04
5.6.230.0070.08020.59
5.6.220.0070.05020.57
5.6.210.0130.08020.56
5.6.200.0100.06721.11
5.6.190.0130.07021.08
5.6.180.0100.03721.04
5.6.170.0100.06721.08
5.6.160.0030.04320.93
5.6.150.0030.04321.17
5.6.140.0100.05021.08
5.6.130.0030.04321.02
5.6.120.0170.03721.04
5.6.110.0030.09021.00
5.6.100.0130.07321.03
5.6.90.0130.08021.08
5.6.80.0170.03720.51
5.6.70.0070.04320.39
5.6.60.0030.06020.54
5.6.50.0070.04320.47
5.6.40.0070.03720.41
5.6.30.0100.03720.45
5.6.20.0100.03320.34
5.6.10.0030.04020.43
5.6.00.0030.04020.37
5.5.370.0100.07320.42
5.5.360.0170.07020.37
5.5.350.0030.08320.40
5.5.340.0070.07720.88
5.5.330.0130.06020.79
5.5.320.0000.05020.77
5.5.310.0070.05020.86
5.5.300.0100.04020.91
5.5.290.0070.04020.75
5.5.280.0100.07020.88
5.5.270.0170.07020.76
5.5.260.0070.08020.61
5.5.250.0100.07720.43
5.5.240.0030.05720.29
5.5.230.0000.07720.30
5.5.220.0070.03720.29
5.5.210.0030.04020.25
5.5.200.0170.04019.99
5.5.190.0000.04320.14
5.5.180.0000.04720.23
5.5.160.0070.07720.11
5.5.150.0070.04020.25
5.5.140.0100.03020.23
5.5.130.0070.05720.07
5.5.120.0030.04320.15
5.5.110.0070.04720.10
5.5.100.0070.04320.05
5.5.90.0070.04320.14
5.5.80.0100.07720.00
5.5.70.0070.06320.15
5.5.60.0030.03720.03
5.5.50.0030.03320.16
5.5.40.0070.03720.09
5.5.30.0070.03720.14
5.5.20.0030.03320.14
5.5.10.0000.04720.03
5.5.00.0100.05720.12
5.4.450.0030.04019.39
5.4.440.0100.04319.11
5.4.430.0030.05019.10
5.4.420.0070.07719.46
5.4.410.0070.04319.25
5.4.400.0030.04019.08
5.4.390.0070.04318.96
5.4.380.0000.05719.07
5.4.370.0030.03719.13
5.4.360.0070.03319.14
5.4.350.0030.03718.92
5.4.340.0130.03018.96
5.4.320.0070.04018.81
5.4.310.0030.04718.90
5.4.300.0070.05718.89
5.4.290.0070.03719.07
5.4.280.0030.03719.23
5.4.270.0070.03319.07
5.4.260.0000.04319.07
5.4.250.0030.03318.81
5.4.240.0030.03718.90
5.4.230.0070.06019.09
5.4.220.0070.05719.22
5.4.210.0000.04018.89
5.4.200.0000.05318.96
5.4.190.0030.03018.95
5.4.180.0070.06018.94
5.4.170.0070.07719.01
5.4.160.0030.05018.99
5.4.150.0100.04019.00
5.4.140.0070.07016.06
5.4.130.0000.06316.32
5.4.120.0070.04716.36
5.4.110.0130.06716.46
5.4.100.0000.07716.43
5.4.90.0030.07016.36
5.4.80.0030.07716.37
5.4.70.0130.05716.20
5.4.60.0070.06316.35
5.4.50.0130.05716.41
5.4.40.0070.06016.37
5.4.30.0030.06716.31
5.4.20.0030.07716.18
5.4.10.0100.05316.31
5.4.00.0130.06315.73
5.3.290.0070.06014.61
5.3.280.0030.05314.55
5.3.270.0070.06314.59
5.3.260.0030.08314.59
5.3.250.0070.07714.46
5.3.240.0100.07314.59
5.3.230.0070.03714.53
5.3.220.0230.02714.51
5.3.210.0070.07014.42
5.3.200.0030.07314.54
5.3.190.0030.06714.41
5.3.180.0200.06014.50
5.3.170.0130.06714.52
5.3.160.0030.05314.39
5.3.150.0070.07014.56
5.3.140.0000.05714.47
5.3.130.0070.04714.48
5.3.120.0130.06714.50
5.3.110.0030.07714.52
5.3.100.0070.08014.01
5.3.90.0030.07714.01
5.3.80.0070.07314.00
5.3.70.0130.07014.00
5.3.60.0030.05313.96
5.3.50.0070.03713.89
5.3.40.0170.07013.85
5.3.30.0030.07313.86
5.3.20.0070.07313.46
5.3.10.0070.07713.66
5.3.00.0100.07713.57
5.2.170.0070.06311.60
5.2.160.0130.05311.60
5.2.150.0030.04711.60
5.2.140.0170.04711.60
5.2.130.0030.06011.60
5.2.120.0070.05311.60
5.2.110.0100.04711.60
5.2.100.0030.06311.60
5.2.90.0030.05311.60
5.2.80.0070.06011.60
5.2.70.0100.05711.60
5.2.60.0070.06011.60
5.2.50.0070.06011.60
5.2.40.0070.06011.60
5.2.30.0030.05311.60
5.2.20.0070.05011.60
5.2.10.0100.05311.60
5.2.00.0070.04311.60
5.1.60.0000.05311.60
5.1.50.0070.05311.60
5.1.40.0070.05011.60
5.1.30.0070.05011.60
5.1.20.0100.05011.60
5.1.10.0030.05011.60
5.1.00.0000.04311.60
5.0.50.0030.03311.60
5.0.40.0070.03311.60
5.0.30.0030.05311.60
5.0.20.0070.03311.60
5.0.10.0030.04311.60
5.0.00.0000.04711.60
4.4.90.0030.03711.60
4.4.80.0000.03311.60
4.4.70.0000.03311.60
4.4.60.0030.03311.60
4.4.50.0030.02711.60
4.4.40.0070.04711.60
4.4.30.0000.03311.60
4.4.20.0000.03311.60
4.4.10.0100.02711.60
4.4.00.0070.04711.60
4.3.110.0000.03311.60
4.3.100.0000.03711.60
4.3.90.0030.02311.60
4.3.80.0000.05311.60
4.3.70.0030.03011.60
4.3.60.0030.02711.60
4.3.50.0000.03311.60
4.3.40.0000.05311.60
4.3.30.0030.02711.60
4.3.20.0000.04011.60
4.3.10.0000.02711.60
4.3.00.0000.03011.60

preferences:
43.1 ms | 401 KiB | 5 Q