3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "\xC2\xA1Hola!"; preg_match('/H/u', $str, $a_matches, PREG_OFFSET_CAPTURE); echo $str, mb_strlen(substr($str, 0, $a_matches[0][1]));

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)
8.3.60.0090.01216.48
8.3.50.0160.00521.14
8.3.40.0120.00318.79
8.3.30.0090.00619.02
8.3.20.0070.00020.24
8.3.10.0080.00023.48
8.3.00.0080.00021.77
8.2.180.0060.01216.88
8.2.170.0000.01422.96
8.2.160.0100.00720.52
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0080.00026.16
8.2.120.0080.00021.19
8.2.110.0090.00021.31
8.2.100.0040.00718.03
8.2.90.0060.00318.22
8.2.80.0030.00618.34
8.2.70.0040.00417.75
8.2.60.0080.00017.75
8.2.50.0000.00818.09
8.2.40.0040.00422.32
8.2.30.0040.00419.52
8.2.20.0040.00417.87
8.2.10.0040.00418.08
8.2.00.0050.00218.09
8.1.280.0120.00925.92
8.1.270.0060.00322.04
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0070.00321.83
8.1.230.0000.01120.89
8.1.220.0000.00817.74
8.1.210.0030.00618.91
8.1.200.0030.00517.23
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0000.00818.65
8.1.160.0040.00420.71
8.1.150.0080.00020.61
8.1.140.0040.00419.53
8.1.130.0040.00417.64
8.1.120.0030.00517.54
8.1.110.0000.00717.37
8.1.100.0040.00417.53
8.1.90.0050.00317.50
8.1.80.0040.00417.55
8.1.70.0030.00317.49
8.1.60.0040.00417.67
8.1.50.0030.00617.64
8.1.40.0000.00817.55
8.1.30.0050.00317.68
8.1.20.0100.00017.71
8.1.10.0050.00317.68
8.1.00.0020.00517.75
8.0.300.0060.00319.80
8.0.290.0000.00817.00
8.0.280.0040.00418.49
8.0.270.0020.00516.99
8.0.260.0030.00317.27
8.0.250.0040.00417.21
8.0.240.0040.00417.21
8.0.230.0030.00317.17
8.0.220.0000.01017.05
8.0.210.0030.00317.09
8.0.200.0030.00617.05
8.0.190.0000.00917.20
8.0.180.0070.00017.17
8.0.170.0040.00417.14
8.0.160.0050.00317.03
8.0.150.0040.00417.11
8.0.140.0040.00417.04
8.0.130.0060.00013.48
8.0.120.0080.00017.00
8.0.110.0000.00717.14
8.0.100.0000.00717.16
8.0.90.0050.00317.10
8.0.80.0060.01517.02
8.0.70.0040.00417.06
8.0.60.0040.00417.15
8.0.50.0000.00717.04
8.0.30.0110.00617.41
8.0.20.0070.01217.45
8.0.10.0050.00316.98
8.0.00.0100.00616.89
7.4.330.0000.00516.86
7.4.320.0000.00616.67
7.4.300.0060.00016.75
7.4.290.0000.00716.67
7.4.280.0030.00516.73
7.4.270.0000.00716.60
7.4.260.0060.00316.64
7.4.250.0020.00516.66
7.4.240.0040.00416.80
7.4.230.0030.00316.64
7.4.220.0060.01316.83
7.4.210.0030.01016.84
7.4.200.0000.00716.80
7.4.160.0070.01016.84
7.4.150.0140.00317.40
7.4.140.0110.00717.86
7.4.130.0090.00916.67
7.4.120.0050.01416.70
7.4.110.0030.01316.73
7.4.100.0140.01016.90
7.4.90.0070.01016.76
7.4.80.0170.00019.39
7.4.70.0060.01016.57
7.4.60.0060.01616.74
7.4.50.0140.00316.79
7.4.40.0160.00716.59
7.4.30.0130.00916.69
7.4.00.0040.01115.05
7.3.330.0040.00413.43
7.3.320.0030.00313.23
7.3.310.0000.00716.51
7.3.300.0070.00016.51
7.3.290.0050.01016.57
7.3.280.0070.01216.56
7.3.270.0120.00717.40
7.3.260.0160.00316.50
7.3.250.0120.00616.66
7.3.240.0180.00016.50
7.3.230.0100.00716.86
7.3.210.0090.00916.52
7.3.200.0120.00919.39
7.3.190.0110.01416.64
7.3.180.0070.01016.61
7.3.170.0090.01016.86
7.3.160.0080.00816.53
7.3.120.0090.00815.06
7.3.110.0100.00715.06
7.3.100.0030.01015.14
7.3.90.0080.00415.02
7.3.80.0000.01015.23
7.3.70.0040.01115.12
7.3.60.0060.00314.83
7.3.50.0000.01014.77
7.3.40.0030.01015.02
7.3.30.0040.00815.10
7.3.20.0030.00916.83
7.3.10.0090.00316.95
7.3.00.0040.01116.78
7.2.330.0030.01316.74
7.2.320.0100.00716.82
7.2.310.0090.00616.76
7.2.300.0030.01416.71
7.2.290.0100.00716.85
7.2.250.0070.01015.03
7.2.240.0110.00814.97
7.2.230.0060.01015.30
7.2.220.0040.00715.05
7.2.210.0040.01115.11
7.2.200.0100.00614.91
7.2.190.0060.00615.09
7.2.180.0000.01314.97
7.2.170.0070.00715.03
7.2.00.0060.00619.35
7.1.330.0070.01016.02
7.1.320.0060.00616.04
7.1.310.0120.00015.97
7.1.300.0100.00715.88
7.1.290.0070.00716.08
7.1.280.0030.00715.91
7.1.270.0070.00715.99
7.1.260.0070.00716.06
7.1.100.0040.00718.35
7.1.70.0030.00617.27
7.1.60.0130.01019.40
7.1.50.0030.02016.57
7.1.00.0100.07022.45
7.0.200.0370.01214.75
7.0.60.0170.04319.96
7.0.50.0100.05717.85
7.0.40.0070.08320.00
7.0.30.0270.05720.16
7.0.20.0330.07320.32
7.0.10.0070.09020.02
7.0.00.0130.08320.31
5.6.280.0070.03020.84
5.6.210.0100.07320.50
5.6.200.0030.07018.23
5.6.190.0100.04020.56
5.6.180.0270.08320.77
5.6.170.0270.04020.42
5.6.160.0070.08720.41
5.6.150.0000.04318.21
5.6.140.0170.07018.18
5.6.130.0070.04018.18
5.6.120.0070.08321.01
5.6.110.0070.05320.95
5.6.100.0100.08321.02
5.6.90.0030.08720.91
5.6.80.0000.04320.34
5.5.350.0270.06720.43
5.5.340.0000.05717.95
5.5.330.0130.08020.13
5.5.320.0170.03720.28
5.5.310.0270.07320.20
5.5.300.0030.08018.02
5.5.290.0070.06017.99
5.5.280.0070.05720.76
5.5.270.0070.03720.86
5.5.260.0200.07020.78
5.5.250.0130.07320.60
5.5.240.0200.07320.18

preferences:
45.91 ms | 404 KiB | 6 Q