3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(substr('πŸ˜€',0 ,1)); var_dump(mb_substr('πŸ˜€', 0 , 1)); preg_match('/test/', 'πŸ˜€test', $matches, PREG_OFFSET_CAPTURE); var_dump($matches);

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)
8.3.40.0080.00819.02
8.3.30.0090.00618.57
8.3.20.0040.00421.95
8.3.10.0040.00421.77
8.3.00.0000.00819.85
8.2.170.0110.00722.96
8.2.160.0030.01021.05
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0040.00420.52
8.2.120.0000.00826.35
8.2.110.0060.00320.47
8.2.100.0060.00617.72
8.2.90.0040.00419.13
8.2.80.0080.00017.97
8.2.70.0060.00317.63
8.2.60.0110.00017.80
8.2.50.0000.00818.10
8.2.40.0080.00022.27
8.2.30.0060.00322.28
8.2.20.0000.00717.82
8.2.10.0000.00717.92
8.2.00.0050.00217.85
8.1.270.0040.00423.84
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0050.00521.90
8.1.230.0080.00420.99
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0060.00317.38
8.1.190.0050.00317.23
8.1.180.0060.00318.10
8.1.170.0050.00318.70
8.1.160.0050.00318.77
8.1.150.0070.00020.31
8.1.140.0050.00319.38
8.1.130.0030.00318.64
8.1.120.0030.00317.37
8.1.110.0080.00017.36
8.1.100.0000.00717.47
8.1.90.0030.00517.35
8.1.80.0000.00717.36
8.1.70.0040.00417.52
8.1.60.0030.00617.64
8.1.50.0040.00417.55
8.1.40.0000.00817.61
8.1.30.0050.00317.66
8.1.20.0030.00617.66
8.1.10.0030.00517.62
8.1.00.0070.00017.44
8.0.300.0000.00818.77
8.0.290.0000.00716.88
8.0.280.0040.00418.34
8.0.270.0030.00617.25
8.0.260.0030.00316.93
8.0.250.0000.00717.09
8.0.240.0030.00616.91
8.0.230.0000.00817.01
8.0.220.0030.00316.98
8.0.210.0000.00716.95
8.0.200.0000.00717.05
8.0.190.0050.00317.01
8.0.180.0040.00416.95
8.0.170.0000.00717.00
8.0.160.0000.00816.97
8.0.150.0000.00816.80
8.0.140.0040.00416.91
8.0.130.0030.00413.32
8.0.120.0070.00016.90
8.0.110.0000.00716.75
8.0.100.0040.00416.97
8.0.90.0070.00016.96
8.0.80.0060.00917.00
8.0.70.0050.00216.95
8.0.60.0050.00216.83
8.0.50.0050.00216.95
8.0.30.0080.00916.96
8.0.20.0110.00917.40
8.0.10.0040.00416.91
8.0.00.0070.01116.80
7.4.330.0000.00615.55
7.4.320.0060.00016.58
7.4.300.0000.00616.62
7.4.290.0030.00716.55
7.4.280.0050.00316.41
7.4.270.0030.00316.66
7.4.260.0030.00616.52
7.4.250.0070.00016.64
7.4.240.0000.00816.59
7.4.230.0030.00316.70
7.4.220.0110.00716.55
7.4.210.0130.00316.56
7.4.200.0030.00316.77
7.4.160.0140.00416.51
7.4.150.0150.00317.40
7.4.140.0080.01317.86
7.4.130.0060.01516.66
7.4.120.0170.00516.58
7.4.110.0100.00716.45
7.4.100.0090.01216.55
7.4.90.0110.00616.39
7.4.80.0030.01419.39
7.4.70.0040.01416.63
7.4.60.0070.01316.46
7.4.50.0070.00316.48
7.4.40.0060.00916.38
7.4.30.0110.00616.43
7.4.10.0100.00714.84
7.4.00.0050.01314.91
7.3.330.0050.00013.10
7.3.320.0060.00013.21
7.3.310.0030.00316.15
7.3.300.0000.00616.29
7.3.290.0060.01216.28
7.3.280.0090.00816.27
7.3.270.0090.01117.40
7.3.260.0120.00816.57
7.3.250.0100.00916.40
7.3.240.0110.00916.37
7.3.230.0060.01216.55
7.3.210.0090.00916.42
7.3.200.0040.02116.63
7.3.190.0060.01516.59
7.3.180.0070.01416.64
7.3.170.0120.00616.30
7.3.160.0030.01316.29
7.3.130.0030.01414.45
7.3.120.0060.01214.53
7.3.110.0040.01114.86
7.3.100.0030.01314.78
7.3.90.0070.00314.95
7.3.80.0050.00514.74
7.3.70.0060.00814.54
7.3.60.0030.01014.47
7.3.50.0120.00314.88
7.3.40.0110.00414.68
7.3.30.0100.00714.56
7.3.20.0070.00716.78
7.3.10.0060.00916.73
7.3.00.0030.01016.52
7.2.330.0120.00616.56
7.2.320.0030.01616.65
7.2.310.0070.01016.69
7.2.300.0040.01516.52
7.2.290.0110.00516.48
7.2.260.0100.00615.18
7.2.250.0070.00714.91
7.2.240.0030.01014.94
7.2.230.0100.00714.79
7.2.220.0130.00315.22
7.2.210.0070.00715.08
7.2.200.0040.00415.18
7.2.190.0120.00014.86
7.2.180.0100.00314.98
7.2.170.0030.00915.03
7.2.160.0060.01214.96
7.2.150.0040.01117.02
7.2.140.0080.00816.53
7.2.130.0060.00916.98
7.2.120.0070.00316.94
7.2.110.0060.01016.48
7.2.100.0100.00716.84
7.2.90.0090.00616.96
7.2.80.0030.00616.96
7.2.70.0090.00616.91
7.2.60.0080.00616.87
7.2.50.0060.00816.69
7.2.40.0050.00517.08
7.2.30.0060.00616.52
7.2.20.0100.00716.94
7.2.10.0060.00616.70
7.2.00.0060.01016.98
7.1.330.0060.00915.69
7.1.320.0080.00815.79
7.1.310.0060.00615.96
7.1.300.0050.00515.80
7.1.290.0110.00016.08
7.1.280.0100.00615.74
7.1.270.0080.00815.77
7.1.260.0070.00715.85
7.1.250.0000.01515.83
7.1.240.0000.01215.89
7.1.230.0030.01315.90
7.1.220.0030.00915.90
7.1.210.0030.01215.86
7.1.200.0050.00615.77
7.1.190.0030.01015.88
7.1.180.0080.00815.57
7.1.170.0070.00715.86
7.1.160.0040.01116.01
7.1.150.0000.01216.02
7.1.140.0030.01315.99
7.1.130.0070.00716.04
7.1.120.0090.00315.69
7.1.110.0000.01915.90
7.1.100.0070.00715.95
7.1.90.0000.01715.95
7.1.80.0120.00615.75
7.1.70.0020.01216.46
7.1.60.1070.01024.67
7.1.50.0140.00724.29
7.1.40.0170.01024.22
7.1.30.1480.01324.19
7.1.20.1420.01524.03
7.1.10.0880.01015.54
7.1.00.0880.00515.47
7.0.330.0110.00415.46
7.0.320.0090.00315.50
7.0.310.0000.01315.41
7.0.300.0070.00715.42
7.0.290.0070.00415.36
7.0.280.0040.00715.42
7.0.270.0030.01015.34
7.0.260.0040.01215.49
7.0.250.0080.00315.27
7.0.240.0040.01115.24
7.0.230.0100.00315.59
7.0.220.0120.00615.36
7.0.210.0090.00915.59
7.0.200.0080.00815.06
7.0.190.0030.01215.12
7.0.180.0800.00315.08
7.0.170.1330.00815.00
7.0.160.0910.01114.86
7.0.150.0820.00815.02
7.0.140.0800.01215.29
7.0.130.1050.01015.10
7.0.120.0820.01015.10
7.0.110.0870.00715.05
7.0.100.0900.01015.16
7.0.90.0770.00715.20
7.0.80.0870.01115.11
7.0.70.0800.00815.03
7.0.60.0730.00715.07
7.0.50.0920.00715.19
7.0.40.1650.01114.32
7.0.30.1130.00714.11
7.0.20.0920.01014.13
7.0.10.0850.01014.12
7.0.00.0790.00814.28
5.6.400.0070.01014.63
5.6.390.0030.00614.46
5.6.380.0140.00014.16
5.6.370.0040.00414.05
5.6.360.0030.00914.28
5.6.350.0100.00314.32
5.6.340.0030.00914.06
5.6.330.0100.00713.92
5.6.320.0070.00713.97
5.6.310.0030.01414.05
5.6.300.0060.01013.86
5.6.290.0100.00314.27
5.6.280.0060.01014.10
5.6.270.0090.00014.18
5.6.260.0000.01313.90
5.6.250.0040.01214.30
5.6.240.0070.00713.95
5.6.230.0130.00314.37
5.6.220.0050.00514.20
5.6.210.0040.01114.09
5.6.200.0050.00514.22
5.6.190.0000.01514.21
5.6.180.0030.01014.13
5.6.170.0050.00514.12
5.6.160.0000.01313.90
5.6.150.0070.00714.43
5.6.140.0080.00414.25
5.6.130.0040.01513.90
5.6.120.0100.01014.43
5.6.110.0040.01514.23
5.6.100.0130.00614.50
5.6.90.0040.01114.14
5.6.80.0000.01513.96
5.6.70.0070.00714.18
5.6.60.0030.00714.32
5.6.50.0090.00913.95
5.6.40.0100.00713.83
5.6.30.0030.01213.95
5.6.20.0070.01014.20
5.6.10.0090.00314.22
5.6.00.0130.00314.23

preferences:
52.42 ms | 400 KiB | 5 Q