3v4l.org

run code in 300+ PHP versions simultaneously
<?php $utf8string = 'ASCIIユーティーエッフ8hello123等々'; $var = 'hello123'; $pos = strpos($utf8string, $var); if ($pos!==false) { echo substr($utf8string, 6, $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)
8.3.40.0110.00318.89
8.3.30.0100.01018.49
8.3.20.0050.00318.83
8.3.10.0040.00421.09
8.3.00.0070.00021.83
8.2.170.0140.00722.96
8.2.160.0070.00720.39
8.2.150.0080.00024.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00421.07
8.2.110.0060.00320.31
8.2.100.0040.00717.91
8.2.90.0080.00019.07
8.2.80.0000.00817.97
8.2.70.0030.00517.50
8.2.60.0050.00317.66
8.2.50.0050.00518.07
8.2.40.0040.00418.16
8.2.30.0070.00019.34
8.2.20.0000.00917.71
8.2.10.0040.00417.68
8.2.00.0090.00017.67
8.1.270.0040.00423.99
8.1.260.0030.00526.35
8.1.250.0080.00028.09
8.1.240.0060.00324.03
8.1.230.0050.00520.89
8.1.220.0000.00818.77
8.1.210.0120.00018.96
8.1.200.0030.00617.23
8.1.190.0000.00817.40
8.1.180.0030.00618.10
8.1.170.0000.00818.53
8.1.160.0040.00418.80
8.1.150.0040.00418.48
8.1.140.0040.00417.40
8.1.130.0030.00517.69
8.1.120.0000.00717.43
8.1.110.0040.00417.21
8.1.100.0040.00417.31
8.1.90.0070.00017.42
8.1.80.0050.00317.39
8.1.70.0030.00317.34
8.1.60.0050.00317.48
8.1.50.0000.00817.38
8.1.40.0040.00417.34
8.1.30.0060.00317.48
8.1.20.0030.00517.54
8.1.10.0000.00717.48
8.1.00.0060.00617.36
8.0.300.0040.00420.03
8.0.290.0000.00817.05
8.0.280.0000.00718.34
8.0.270.0030.00617.17
8.0.260.0030.00316.81
8.0.250.0000.00716.95
8.0.240.0060.00616.84
8.0.230.0000.00716.92
8.0.220.0030.00316.86
8.0.210.0030.00316.84
8.0.200.0000.01216.74
8.0.190.0030.00516.88
8.0.180.0030.00516.79
8.0.170.0070.00016.88
8.0.160.0050.00216.84
8.0.150.0000.00716.88
8.0.140.0030.00516.79
8.0.130.0060.00013.23
8.0.120.0040.00416.82
8.0.110.0000.00716.85
8.0.100.0040.00416.70
8.0.90.0000.00716.69
8.0.80.0150.00616.80
8.0.70.0040.00316.77
8.0.60.0070.00016.77
8.0.50.0000.00816.72
8.0.30.0110.01117.03
8.0.20.0110.00817.40
8.0.10.0070.00016.84
8.0.00.0080.01216.75
7.4.330.0030.00316.85
7.4.320.0060.00016.62
7.4.300.0030.00316.54
7.4.290.0030.00316.50
7.4.280.0040.00416.57
7.4.270.0030.00316.60
7.4.260.0050.00013.19
7.4.250.0040.00416.37
7.4.240.0040.00416.56
7.4.230.0070.00016.70
7.4.220.0060.01216.47
7.4.210.0060.00816.54
7.4.200.0040.00416.69
7.4.190.0000.00816.37
7.4.160.0090.00616.38
7.4.150.0000.01617.40
7.4.140.0100.00717.86
7.4.130.0140.00616.42
7.4.120.0060.01016.48
7.4.110.0110.00616.58
7.4.100.0100.00716.32
7.4.90.0070.01416.25
7.4.80.0000.02319.39
7.4.70.0060.01116.46
7.4.60.0040.01216.40
7.4.50.0060.00316.51
7.4.40.0090.00622.77
7.4.30.0090.00716.49
7.4.00.0080.00515.09
7.3.330.0000.00512.95
7.3.320.0020.00213.11
7.3.310.0000.00716.27
7.3.300.0030.00316.17
7.3.290.0030.01016.18
7.3.280.0090.00616.15
7.3.270.0230.00017.40
7.3.260.0090.01118.24
7.3.250.0100.01016.19
7.3.240.0100.01316.23
7.3.230.0040.01316.39
7.3.210.0100.01216.48
7.3.200.0060.00919.39
7.3.190.0080.00816.45
7.3.180.0060.01116.59
7.3.170.0140.00616.52
7.3.160.0100.00716.50
7.3.120.0070.00714.71
7.2.330.0100.00716.66
7.2.320.0150.00816.44
7.2.310.0120.00616.50
7.2.300.0130.00316.51
7.2.290.0030.01416.64
7.2.60.0060.00616.66
7.2.00.0030.00819.47
7.1.200.0070.00715.75
7.1.100.0030.00917.88
7.1.70.0000.00716.86
7.1.60.0100.01619.17
7.1.50.0140.01116.81
7.1.00.0000.03722.35
7.0.200.0000.00716.61
7.0.140.0030.07322.01
7.0.60.0230.05719.97
7.0.50.0070.03717.88
7.0.40.0100.06719.98
7.0.30.0370.06320.14
7.0.20.0330.04320.30
7.0.10.0070.05320.34
7.0.00.0130.08320.17
5.6.280.0100.06720.81
5.6.210.0130.07320.75
5.6.200.0030.08718.19
5.6.190.0070.06320.39
5.6.180.0030.06720.35
5.6.170.0100.05720.50
5.6.160.0000.04320.44
5.6.150.0030.05718.18
5.6.140.0100.03318.10
5.6.130.0070.08318.07
5.6.120.0070.07321.03
5.6.110.0070.08321.02
5.6.100.0130.03720.97
5.6.90.0030.07020.94
5.6.80.0170.06720.43
5.5.350.0030.07320.43
5.5.340.0070.05017.91
5.5.330.0100.08020.47
5.5.320.0330.07320.24
5.5.310.0470.07720.34
5.5.300.0100.05717.98
5.5.290.0000.08017.98
5.5.280.0070.04720.87
5.5.270.0100.08320.79
5.5.260.0130.07320.95
5.5.250.0000.04320.46
5.5.240.0000.03320.36
5.4.450.1600.04319.58
5.4.440.1630.03719.40
5.4.430.1470.04019.38
5.4.420.1730.03719.41
5.4.410.1800.03319.35
5.4.400.1430.03319.13
5.4.390.1400.04718.91
5.4.380.2030.04319.05
5.4.370.1600.03719.09
5.4.360.0900.03319.09
5.4.350.1400.03319.13
5.4.340.1430.03019.09
5.4.320.1430.03318.78
5.4.310.1430.04019.06
5.4.300.1370.03019.06
5.4.290.1570.03319.23
5.4.280.1330.03318.90
5.4.270.1430.04318.77
5.4.260.1570.03318.93
5.4.250.1470.03719.12
5.4.240.1870.04019.15
5.4.230.1470.04019.21
5.4.220.1600.03018.91
5.4.210.0570.04318.92
5.4.200.0070.03319.11
5.4.190.0100.07719.12
5.4.180.0070.04718.91
5.4.170.1370.03719.19
5.4.160.1900.04018.86
5.4.150.1670.03319.06
5.4.140.1730.03316.27
5.4.130.0000.04016.35
5.4.120.0030.03316.35
5.4.110.0830.03016.34
5.4.100.1670.04316.41
5.4.90.1930.04016.39
5.4.80.1670.03016.30
5.4.70.1730.03716.19
5.4.60.1670.03016.19
5.4.50.1830.03316.31
5.4.40.1700.03316.16
5.4.30.1730.04716.36
5.4.20.1830.04316.20
5.4.10.1800.04316.45
5.4.00.1600.03715.64
5.3.290.1930.04014.52
5.3.280.1800.04714.49
5.3.270.1970.03314.56
5.3.260.1870.04314.69
5.3.250.1500.06014.44
5.3.240.1770.03714.43
5.3.230.1900.04314.53
5.3.220.1770.04714.40
5.3.210.1870.05014.50
5.3.200.1900.05014.61
5.3.190.1700.03714.50
5.3.180.1230.03714.39
5.3.170.0030.03714.39
5.3.160.0100.03314.41
5.3.150.1000.04714.65
5.3.140.1900.04714.39
5.3.130.1570.04014.54
5.3.120.1870.05014.45
5.3.110.1670.03714.45
5.3.100.1630.03714.02
5.3.90.1570.04013.86
5.3.80.1630.04013.98
5.3.70.1970.04714.03
5.3.60.1770.03713.95
5.3.50.1700.04713.85
5.3.40.0800.03013.89
5.3.30.0030.03713.92
5.3.20.0070.03013.55
5.3.10.1330.03713.61
5.3.00.1670.03313.51
5.2.170.1400.03011.32
5.2.160.1600.03010.99
5.2.150.1470.02710.98
5.2.140.1400.02710.97
5.2.130.1330.03311.12
5.2.120.1500.03310.99
5.2.110.1500.02711.11
5.2.100.1600.03010.96
5.2.90.1830.03311.14
5.2.80.1300.03011.14
5.2.70.1300.03011.10
5.2.60.1330.02710.98
5.2.50.1330.03010.91
5.2.40.1100.03311.00
5.2.30.1130.02310.90
5.2.20.1170.02011.00
5.2.10.1300.04010.86
5.2.00.1300.04010.61
5.1.60.1230.0339.96
5.1.50.1300.03310.04
5.1.40.1100.0239.87
5.1.30.1070.02710.49
5.1.20.1270.03310.32
5.1.10.1130.0239.95
5.1.00.1030.0279.96
5.0.50.0630.0278.66
5.0.40.0730.0278.30
5.0.30.0530.0378.28
5.0.20.0670.0338.10
5.0.10.0570.0208.09
5.0.00.0730.0308.27
4.4.90.0530.0178.06
4.4.80.0700.0178.06
4.4.70.0630.0208.06
4.4.60.0670.0308.06
4.4.50.0530.0178.06
4.4.40.0670.0308.06
4.4.30.0670.0178.06
4.4.20.0730.0278.06
4.4.10.0700.0208.06
4.4.00.0600.0278.06
4.3.110.0570.0178.06
4.3.100.0570.0138.06
4.3.90.0800.0178.06
4.3.80.0500.0378.06
4.3.70.0770.0178.06
4.3.60.0600.0178.06
4.3.50.0530.0178.06
4.3.40.0730.0378.06
4.3.30.0300.0278.06
4.3.20.0300.0138.06
4.3.10.0300.0138.06
4.3.00.0230.0178.06

preferences:
39.03 ms | 400 KiB | 5 Q