3v4l.org

run code in 300+ PHP versions simultaneously
<?php $utf8string = 'ASCIIユーティーエッフ8<h3>123等々'; $var = '<h3>'; $pos = strpos($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)
8.3.60.0100.01018.30
8.3.50.0130.00521.02
8.3.40.0100.00618.71
8.3.30.0090.00620.23
8.3.20.0080.00018.65
8.3.10.0040.00421.09
8.3.00.0040.00423.57
8.2.180.0180.00418.04
8.2.170.0060.00922.96
8.2.160.0030.01320.47
8.2.150.0100.00324.18
8.2.140.0000.00824.66
8.2.130.0050.00326.16
8.2.120.0000.00719.89
8.2.110.0040.00422.08
8.2.100.0090.00317.70
8.2.90.0000.00719.17
8.2.80.0050.00319.40
8.2.70.0030.00617.63
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0040.00419.91
8.2.30.0060.00319.34
8.2.20.0000.00717.50
8.2.10.0000.00817.55
8.2.00.0090.00017.73
8.1.280.0100.01025.92
8.1.270.0030.00523.99
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00622.48
8.1.230.0040.00720.97
8.1.220.0000.00818.77
8.1.210.0040.00418.84
8.1.200.0060.00317.11
8.1.190.0020.00517.39
8.1.180.0000.00818.10
8.1.170.0030.00618.50
8.1.160.0000.00818.73
8.1.150.0030.00518.55
8.1.140.0000.00717.31
8.1.130.0030.00317.73
8.1.120.0000.00717.31
8.1.110.0080.00017.29
8.1.100.0040.00317.36
8.1.90.0040.00417.30
8.1.80.0040.00417.42
8.1.70.0040.00417.25
8.1.60.0040.00417.56
8.1.50.0050.00317.30
8.1.40.0020.00517.40
8.1.30.0000.00717.47
8.1.20.0030.00517.51
8.1.10.0040.00417.42
8.1.00.0130.00017.49
8.0.300.0040.00419.94
8.0.290.0040.00417.05
8.0.280.0000.00718.34
8.0.270.0030.00517.25
8.0.260.0030.00316.74
8.0.250.0040.00416.85
8.0.240.0080.00016.88
8.0.230.0040.00416.84
8.0.220.0000.00716.82
8.0.210.0040.00416.79
8.0.200.0000.00616.77
8.0.190.0030.00316.77
8.0.180.0030.00616.80
8.0.170.0070.00016.80
8.0.160.0070.00016.84
8.0.150.0080.00016.84
8.0.140.0040.00416.71
8.0.130.0030.00313.20
8.0.120.0030.00616.73
8.0.110.0050.00216.66
8.0.100.0030.00516.88
8.0.90.0000.00716.75
8.0.80.0060.01216.87
8.0.70.0030.00516.83
8.0.60.0070.00016.85
8.0.50.0040.00416.84
8.0.30.0130.00617.00
8.0.20.0130.00617.40
8.0.10.0000.00717.00
8.0.00.0230.01116.70
7.4.330.0030.00314.90
7.4.320.0000.00716.49
7.4.300.0030.00316.59
7.4.290.0030.00316.55
7.4.280.0030.00316.41
7.4.270.0000.00816.58
7.4.260.0030.00313.23
7.4.250.0000.00716.48
7.4.240.0040.00416.63
7.4.230.0070.00016.61
7.4.220.0060.01216.65
7.4.210.0060.01016.51
7.4.200.0000.00716.29
7.4.190.0040.00416.61
7.4.160.0120.00616.39
7.4.150.0130.00317.40
7.4.140.0110.00717.86
7.4.130.0100.01116.41
7.4.120.0080.01116.41
7.4.110.0120.00616.63
7.4.100.0100.01016.38
7.4.90.0100.00716.48
7.4.80.0060.01019.39
7.4.70.0090.00916.67
7.4.60.0070.01016.58
7.4.50.0080.00016.25
7.4.40.0090.00622.77
7.4.30.0070.01016.75
7.4.00.0060.00614.96
7.3.330.0050.00012.99
7.3.320.0000.00613.04
7.3.310.0040.00416.01
7.3.300.0040.00416.18
7.3.290.0100.00716.17
7.3.280.0080.00816.20
7.3.270.0060.01117.40
7.3.260.0150.00618.24
7.3.250.0080.00816.36
7.3.240.0080.00816.46
7.3.230.0140.00616.39
7.3.210.0070.01016.41
7.3.200.0180.00319.39
7.3.190.0110.00716.50
7.3.180.0080.00816.29
7.3.170.0080.00816.40
7.3.160.0030.01216.43
7.3.120.0040.01114.88
7.2.330.0040.01216.28
7.2.320.0090.01216.68
7.2.310.0060.01616.71
7.2.300.0030.01316.51
7.2.290.0100.00716.66
7.1.70.0040.01216.84
7.1.60.0140.00619.17
7.1.50.0080.01517.03
7.1.00.0070.06322.51
7.0.200.0000.00916.70
7.0.140.0070.07022.16
7.0.100.0100.08019.94
7.0.90.0070.06019.96
7.0.80.0130.07720.00
7.0.70.0170.07020.13
7.0.60.0200.08020.00
7.0.50.0300.07720.33
7.0.40.0100.05320.17
7.0.30.0100.08320.14
7.0.20.0100.04720.08
7.0.10.0130.04320.04
7.0.00.0000.05320.08
5.6.280.0000.07721.03
5.6.250.0070.05020.55
5.6.240.0130.06720.66
5.6.230.0130.07020.68
5.6.220.0170.04320.65
5.6.210.0030.09020.56
5.6.200.0000.08721.11
5.6.190.0070.07321.01
5.6.180.0130.07721.05
5.6.170.0070.05021.08
5.6.160.0200.07021.10
5.6.150.0100.07720.96
5.6.140.0170.07021.10
5.6.130.0070.07321.16
5.6.120.0100.04720.95
5.6.110.0130.08021.01
5.6.100.0070.05020.98
5.6.90.0000.06021.00
5.6.80.0030.08320.34
5.6.70.0100.04320.45
5.6.60.0000.06720.44
5.6.50.0070.08720.38
5.6.40.0100.04720.35
5.6.30.0000.06320.45
5.6.20.0130.03320.30
5.6.10.0030.04720.30
5.6.00.0170.06320.37
5.5.380.0130.07320.39
5.5.370.0030.05020.34
5.5.360.0130.04720.38
5.5.350.0130.07320.41
5.5.340.0070.08320.77
5.5.330.0030.06320.83
5.5.320.0130.05720.82
5.5.310.0130.07720.88
5.5.300.0100.04720.75
5.5.290.0030.09320.79
5.5.280.0100.07020.89
5.5.270.0100.06720.71
5.5.260.0070.06020.71
5.5.250.0200.06320.73
5.5.240.0130.06320.27
5.5.230.0100.07320.13
5.5.220.0100.07320.29
5.5.210.0130.07020.17
5.5.200.0030.04720.24
5.5.190.0030.08020.21
5.5.180.0130.05320.17
5.5.160.0030.04720.23
5.5.150.0100.05020.26
5.5.140.0030.04020.21
5.5.130.0100.04320.23
5.5.120.0000.06320.24
5.5.110.0070.04720.25
5.5.100.0070.08020.16
5.5.90.0070.07019.95
5.5.80.0070.07720.15
5.5.70.0100.07320.05
5.5.60.0100.04020.05
5.5.50.0130.06720.08
5.5.40.0130.07319.91
5.5.30.0170.07020.04
5.5.20.0100.06720.14
5.5.10.0100.04720.13
5.5.00.0100.07720.09
5.4.450.0070.07719.47
5.4.440.0100.03719.35
5.4.430.0200.04019.11
5.4.420.0130.07319.26
5.4.410.0030.06719.22
5.4.400.0130.04719.12
5.4.390.0100.08019.15
5.4.380.0030.05019.04
5.4.370.0070.04319.07
5.4.360.0100.08019.03
5.4.350.0100.08319.14
5.4.340.0170.06319.22
5.4.320.0000.07719.05
5.4.310.0070.05719.12
5.4.300.0070.06018.95
5.4.290.0100.04319.05
5.4.280.0100.03319.09
5.4.270.0000.04719.03
5.4.260.0030.04718.80
5.4.250.0200.06719.14
5.4.240.0100.07718.80
5.4.230.0130.07018.95
5.4.220.0070.07018.97
5.4.210.0100.07318.94
5.4.200.0100.07319.13
5.4.190.0130.06719.08
5.4.180.0070.07319.02
5.4.170.0130.06718.95
5.4.160.0030.05719.04
5.4.150.0070.08019.00
5.4.140.0100.07316.23
5.4.130.0070.07316.31
5.4.120.0070.07016.22
5.4.110.0070.07316.25
5.4.100.0070.07316.41
5.4.90.0000.08016.40
5.4.80.0130.06316.29
5.4.70.0000.08016.22
5.4.60.0070.05016.20
5.4.50.0230.02716.40
5.4.40.0070.06316.28
5.4.30.0070.04016.36
5.4.20.0000.04016.29
5.4.10.0030.07316.20
5.4.00.0100.06715.66
5.3.290.0030.05314.65
5.3.280.0070.07714.54
5.3.270.0070.07014.46
5.3.260.0070.05014.59
5.3.250.0030.08014.46
5.3.240.0070.07714.55
5.3.230.0130.07014.45
5.3.220.0030.04714.54
5.3.210.0070.06314.39
5.3.200.0070.04314.51
5.3.190.0000.04314.42
5.3.180.0070.06714.50
5.3.170.0000.04714.53
5.3.160.0070.07314.50
5.3.150.0000.08314.54
5.3.140.0070.05314.54
5.3.130.0130.06314.40
5.3.120.0130.04714.49
5.3.110.0070.07714.53
5.3.100.0070.07714.02
5.3.90.0000.04713.85
5.3.80.0030.07314.02
5.3.70.0070.07713.95
5.3.60.0130.07313.98
5.3.50.0000.07713.95
5.3.40.0030.04713.90
5.3.30.0070.07013.89
5.3.20.0070.04313.62
5.3.10.0070.07013.52
5.3.00.0030.07013.66
5.2.170.0100.05711.18
5.2.160.0070.05711.15
5.2.150.0070.06310.99
5.2.140.0070.03311.18
5.2.130.0100.03711.05
5.2.120.0070.06011.08
5.2.110.0030.04711.02
5.2.100.0100.05711.09
5.2.90.0070.05710.92
5.2.80.0030.03311.08
5.2.70.0030.05710.92
5.2.60.0100.05711.04
5.2.50.0100.05311.04
5.2.40.0100.03310.78
5.2.30.0030.06310.79
5.2.20.0030.05310.86
5.2.10.0070.04310.71
5.2.00.0070.05710.71
5.1.60.0070.0539.87
5.1.50.0070.0509.99
5.1.40.0100.04710.00
5.1.30.0030.05310.29
5.1.20.0000.03710.39
5.1.10.0100.0339.94
5.1.00.0030.0309.90
5.0.50.0030.0378.66
5.0.40.0030.0308.66
5.0.30.0070.0408.66
5.0.20.0000.0278.66
5.0.10.0000.0478.66
5.0.00.0000.0678.66
4.4.90.0070.0308.66
4.4.80.0030.0238.66
4.4.70.0070.0338.66
4.4.60.0070.0308.66
4.4.50.0000.0338.66
4.4.40.0030.0538.66
4.4.30.0000.0378.66
4.4.20.0000.0208.66
4.4.10.0000.0308.66
4.4.00.0000.0438.66
4.3.110.0070.0138.66
4.3.100.0000.0138.66
4.3.90.0070.0238.66
4.3.80.0000.0508.66
4.3.70.0030.0108.66
4.3.60.0000.0408.66
4.3.50.0000.0208.66
4.3.40.0000.0538.66
4.3.30.0030.0208.66
4.3.20.0000.0378.66
4.3.10.0030.0238.66
4.3.00.0000.0208.66

preferences:
46.29 ms | 401 KiB | 5 Q