3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_match('//u', "\xef\xbf\xbf")); var_dump(preg_match('//u', "\xf4\x8f\xbf\xbf")); var_dump(preg_match('//u', "\xe0\x80\x80")); var_dump(preg_match('//u', "\xf4\x90\x80\x80"));

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)
8.3.60.0060.00918.52
8.3.50.0150.00521.33
8.3.40.0130.00318.83
8.3.30.0140.00718.79
8.3.20.0040.01120.39
8.3.10.0040.00421.96
8.3.00.0120.00322.32
8.2.180.0070.01116.88
8.2.170.0160.00322.96
8.2.160.0090.00620.39
8.2.150.0110.00724.18
8.2.140.0100.00424.66
8.2.130.0110.00726.16
8.2.120.0000.00719.64
8.2.110.0030.00622.38
8.2.100.0080.00417.84
8.2.90.0080.00018.03
8.2.80.0050.00317.97
8.2.70.0060.00317.75
8.2.60.0090.00017.80
8.2.50.0030.00618.07
8.2.40.0040.00417.94
8.2.30.0040.00418.02
8.2.20.0060.00317.77
8.2.10.0040.00417.82
8.2.00.0050.00217.63
8.1.280.0110.00425.92
8.1.270.0040.00420.46
8.1.260.0040.01126.35
8.1.250.0040.00428.09
8.1.240.0090.00022.39
8.1.230.0070.00420.89
8.1.220.0000.00917.74
8.1.210.0000.00818.77
8.1.200.0060.00617.23
8.1.190.0000.00717.27
8.1.180.0050.00319.01
8.1.170.0040.00418.57
8.1.160.0000.00722.16
8.1.150.0040.00418.70
8.1.140.0020.00517.38
8.1.130.0050.00317.82
8.1.120.0040.00417.50
8.1.110.0050.00317.50
8.1.100.0040.00417.38
8.1.90.0050.00317.49
8.1.80.0040.00317.52
8.1.70.0030.00317.42
8.1.60.0050.00317.63
8.1.50.0000.00817.54
8.1.40.0050.00217.44
8.1.30.0040.00417.54
8.1.20.0040.00417.57
8.1.10.0050.00317.54
8.1.00.0080.00517.32
8.0.300.0060.00319.79
8.0.290.0000.00717.05
8.0.280.0030.00318.29
8.0.270.0040.00417.06
8.0.260.0000.00616.80
8.0.250.0040.00417.07
8.0.240.0050.00216.94
8.0.230.0000.00717.03
8.0.220.0000.00716.99
8.0.210.0000.00616.85
8.0.200.0070.00016.90
8.0.190.0040.00416.90
8.0.180.0000.00817.02
8.0.170.0040.00416.98
8.0.160.0080.00016.85
8.0.150.0000.00716.77
8.0.140.0000.00716.89
8.0.130.0060.00013.48
8.0.120.0000.00916.84
8.0.110.0000.00716.92
8.0.100.0000.00716.91
8.0.90.0040.00416.84
8.0.80.0070.01016.88
8.0.70.0000.00816.76
8.0.60.0040.00417.05
8.0.50.0070.00016.95
8.0.30.0110.00817.18
8.0.20.0150.00517.40
8.0.10.0000.00716.94
8.0.00.0080.01016.87
7.4.330.0060.00015.00
7.4.320.0000.00616.70
7.4.300.0030.00316.67
7.4.290.0030.00316.55
7.4.280.0030.00316.56
7.4.270.0030.00316.66
7.4.260.0040.00716.59
7.4.250.0040.00416.54
7.4.240.0030.00516.56
7.4.230.0000.00716.57
7.4.220.0080.01116.75
7.4.210.0100.00416.72
7.4.200.0000.00716.45
7.4.190.0030.00316.73
7.4.160.0070.01016.50
7.4.150.0110.00617.40
7.4.140.0140.00717.86
7.4.130.0030.01316.48
7.4.120.0130.00516.57
7.4.110.0130.00316.47
7.4.100.0110.00516.50
7.4.90.0100.00716.52
7.4.80.0070.01119.39
7.4.70.0120.00416.52
7.4.60.0060.00916.58
7.4.50.0000.00516.46
7.4.40.0100.00222.77
7.4.30.0060.01216.48
7.4.00.0030.00914.82
7.3.330.0000.00513.20
7.3.320.0020.00213.06
7.3.310.0040.00416.18
7.3.300.0060.00016.38
7.3.290.0080.00816.46
7.3.280.0080.00916.36
7.3.270.0070.01017.40
7.3.260.0210.00316.34
7.3.250.0090.00916.50
7.3.240.0070.01016.36
7.3.230.0150.00716.55
7.3.210.0100.00716.54
7.3.200.0090.00919.39
7.3.190.0040.01516.28
7.3.180.0000.01616.26
7.3.170.0130.00316.27
7.3.160.0150.00916.34
7.3.120.0030.00715.09
7.3.10.0080.00416.78
7.3.00.0060.00616.64
7.2.330.0090.00916.61
7.2.320.0110.00716.75
7.2.310.0160.00716.50
7.2.300.0070.01016.48
7.2.290.0100.01116.53
7.2.130.0020.01216.88
7.2.120.0030.00616.79
7.2.110.0060.00716.80
7.2.100.0060.00816.74
7.2.90.0080.00616.95
7.2.80.0080.00616.85
7.2.70.0030.00716.74
7.2.60.0030.00916.64
7.2.50.0100.00516.71
7.2.40.0070.00416.88
7.2.30.0020.01016.92
7.2.20.0080.00316.94
7.2.10.0070.00516.77
7.2.00.0060.00416.79
7.1.250.0050.00716.01
7.1.200.0090.00315.89
7.1.70.0040.00417.39
7.1.60.0110.01419.50
7.1.50.0100.01016.69
7.1.00.0130.06322.59
7.0.200.0040.00416.77
7.0.140.0070.07022.18
7.0.60.0170.06719.85
7.0.50.0000.04717.89
7.0.40.0100.07720.29
7.0.30.0330.06720.18
7.0.20.0300.05020.09
7.0.10.0030.05320.02
7.0.00.0100.08320.34
5.6.280.0100.08721.10
5.6.210.0070.07720.54
5.6.200.0070.06318.12
5.6.190.0030.07320.57
5.6.180.3270.04320.39
5.6.170.0230.08020.51
5.6.160.0100.08020.49
5.6.150.0100.06318.22
5.6.140.0100.07718.21
5.6.130.0030.08318.21
5.6.120.0000.04321.12
5.6.110.0170.04720.99
5.6.100.0130.07020.97
5.6.90.0100.04720.88
5.6.80.0100.06020.37
5.6.70.4230.04020.51
5.5.350.0070.03320.32
5.5.340.0070.08317.99
5.5.330.0100.08020.21
5.5.320.0300.07020.33
5.5.310.0270.05320.32
5.5.300.0070.04317.92
5.5.290.0100.07717.94
5.5.280.0100.08320.96
5.5.270.0030.05720.61
5.5.260.0000.04320.74
5.5.250.0100.07720.77
5.5.240.0130.06720.14
5.4.450.0270.05019.55
5.4.440.0770.06019.48
5.4.430.0630.05719.48
5.4.420.0670.05319.48
5.4.410.0200.06718.88
5.4.400.1370.06018.50
5.4.390.1300.05718.53
5.4.380.0330.04718.67
5.4.370.0170.04718.78
5.4.360.0170.04718.64
5.4.350.0090.03611.97
5.4.340.0100.03311.97
5.4.320.0050.03812.46
5.4.310.0040.04412.45
5.4.300.0090.03412.46
5.4.290.0060.05312.45
5.4.280.0090.03512.35
5.4.270.0080.03812.35
5.4.260.0060.04112.35
5.4.250.0170.04719.02
5.4.240.0100.05318.72
5.4.230.0130.05318.90
5.4.220.0230.06318.89
5.4.210.0170.05318.99
5.4.200.0100.05718.83
5.4.190.0000.06018.69
5.4.180.0100.05018.82
5.4.170.0030.07718.75
5.4.160.0100.05018.91
5.4.150.0000.07018.73
5.4.140.0070.05316.29
5.4.130.0070.05316.49
5.4.120.0070.07316.25
5.4.110.0000.06316.50
5.4.100.0100.06316.20
5.4.90.0070.05016.34
5.4.80.0130.06016.48
5.4.70.0030.05316.27
5.4.60.0070.05016.50
5.4.50.0100.06716.36
5.4.40.0200.03716.41
5.4.30.0030.05716.38
5.4.20.0070.05016.31
5.4.10.0200.05716.26
5.4.00.0100.04715.94
5.3.290.0110.04012.80
5.3.280.0070.05714.75
5.3.270.0170.04314.30
5.3.260.0070.07714.52
5.3.250.0100.04314.62
5.3.240.0030.05714.63
5.3.230.0100.04714.46
5.3.220.0030.05714.57
5.3.210.0100.06714.58
5.3.200.0130.06314.59
5.3.190.0070.07014.58
5.3.180.0200.06014.57
5.3.170.0070.05014.47
5.3.160.0000.05714.71
5.3.150.0100.06014.57
5.3.140.0100.04714.57
5.3.130.0100.05014.42
5.3.120.0030.05714.70
5.3.110.0100.05014.46
5.3.100.0100.05013.87
5.3.90.0100.07314.02
5.3.80.0100.05014.01
5.3.70.0130.06314.04
5.3.60.0070.06014.09
5.3.50.0170.04713.79
5.3.40.0170.06014.09
5.3.30.0030.05314.06
5.3.20.0130.04313.52
5.3.10.0030.05313.65
5.3.00.0070.05013.51
5.2.170.0070.04311.16
5.2.160.0100.03311.14
5.2.150.0070.05711.14
5.2.140.0000.06311.14
5.2.130.0070.04310.86
5.2.120.0000.06011.11
5.2.110.0100.04010.98
5.2.100.0100.04311.10
5.2.90.0070.04011.02
5.2.80.0070.03711.00
5.2.70.0100.05711.20
5.2.60.0070.04010.88
5.2.50.0070.04710.91
5.2.40.0100.05011.01
5.2.30.0000.05311.07
5.2.20.0130.04710.96
5.2.10.0070.04010.91
5.2.00.0030.04310.79
5.1.60.0130.03710.08
5.1.50.0030.05010.05
5.1.40.0030.04010.07
5.1.30.0030.05710.39
5.1.20.0100.04310.25
5.1.10.0000.0409.78
5.1.00.0100.0379.91
5.0.50.0000.0308.45
5.0.40.0000.0378.46
5.0.30.0030.0438.45
5.0.20.0000.0278.45
5.0.10.0070.0338.45
5.0.00.0070.0478.45
4.4.90.0100.0238.45
4.4.80.0070.0238.45
4.4.70.0070.0278.45
4.4.60.0030.0238.45
4.4.50.0030.0278.45
4.4.40.0000.0378.45
4.4.30.0030.0278.45
4.4.20.0000.0308.45
4.4.10.0000.0238.45
4.4.00.0070.0378.45
4.3.110.0070.0178.45
4.3.100.0000.0308.45
4.3.90.0000.0238.45
4.3.80.0000.0408.45
4.3.70.0000.0308.45
4.3.60.0000.0238.45
4.3.50.0070.0208.45
4.3.40.0000.0338.45
4.3.30.0070.0238.45
4.3.20.0070.0208.45
4.3.10.0030.0208.45
4.3.00.0030.0306.87

preferences:
48.16 ms | 401 KiB | 5 Q