3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_match('//u', "\xE3\x81\x82", $matches)); var_dump(preg_match('//u', "\xF0\xA0\x80\x8B", $matches)); var_dump(preg_match('//u', "\xF0\xA0\x80\x8B\x01", $matches)); var_dump(preg_match('//u', "𠀋", $matches)); var_dump("\xF0\xA0\x80\x8B" == "𠀋");

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)
8.3.40.0040.01118.76
8.3.30.0070.00718.98
8.3.20.0000.00720.16
8.3.10.0040.00423.63
8.3.00.0040.00419.38
8.2.170.0130.00722.96
8.2.160.0090.00920.23
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0070.00021.04
8.2.110.0060.00322.44
8.2.100.0080.00417.91
8.2.90.0000.00917.75
8.2.80.0000.00818.91
8.2.70.0040.00417.75
8.2.60.0050.00317.50
8.2.50.0000.00817.55
8.2.40.0090.00019.48
8.2.30.0030.00517.87
8.2.20.0060.00317.70
8.2.10.0040.00417.94
8.2.00.0040.00417.77
8.1.270.0040.00423.96
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00719.14
8.1.230.0040.00720.88
8.1.220.0040.00418.57
8.1.210.0000.00818.77
8.1.200.0040.00417.35
8.1.190.0000.00817.23
8.1.180.0070.00018.10
8.1.170.0000.00817.62
8.1.160.0040.00318.84
8.1.150.0040.00418.79
8.1.140.0040.00417.54
8.1.130.0070.00017.76
8.1.120.0040.00417.45
8.1.110.0080.00017.40
8.1.100.0000.00717.41
8.1.90.0070.00017.52
8.1.80.0000.00717.47
8.1.70.0030.00317.43
8.1.60.0000.00817.55
8.1.50.0000.00817.43
8.1.40.0030.00517.50
8.1.30.0030.00517.62
8.1.20.0040.00417.68
8.1.10.0000.00717.62
8.1.00.0000.00717.44
8.0.300.0070.00018.77
8.0.290.0000.00816.88
8.0.280.0000.00718.34
8.0.270.0040.00417.17
8.0.260.0030.00317.09
8.0.250.0000.00816.95
8.0.240.0070.00017.07
8.0.230.0040.00416.87
8.0.220.0000.00717.02
8.0.210.0000.00716.94
8.0.200.0000.00716.91
8.0.190.0000.00716.93
8.0.180.0000.00717.03
8.0.170.0000.00816.96
8.0.160.0030.00316.85
8.0.150.0040.00416.83
8.0.140.0030.00316.77
8.0.130.0000.00613.36
8.0.120.0030.00516.94
8.0.110.0040.00416.97
8.0.100.0000.00716.92
8.0.90.0020.00517.04
8.0.80.0090.01316.97
8.0.70.0050.00217.00
8.0.60.0000.00816.86
8.0.50.0000.00716.86
8.0.30.0160.00917.11
8.0.20.0190.00517.40
8.0.10.0040.00417.06
8.0.00.0050.01416.79
7.4.330.0000.00515.04
7.4.320.0030.00316.71
7.4.300.0060.00016.48
7.4.290.0030.00316.59
7.4.280.0030.00616.68
7.4.270.0070.00016.56
7.4.260.0030.00316.49
7.4.250.0080.00016.42
7.4.240.0000.00816.64
7.4.230.0030.00316.57
7.4.220.0040.01416.79
7.4.210.0070.00716.72
7.4.200.0080.00016.63
7.4.160.0050.01016.72
7.4.150.0130.00317.40
7.4.140.0060.01117.86
7.4.130.0100.00716.71
7.4.120.0080.00916.54
7.4.110.0100.00716.67
7.4.100.0110.00716.50
7.4.90.0120.00616.55
7.4.80.0150.00619.39
7.4.70.0090.01216.66
7.4.60.0110.00616.53
7.4.50.0040.00416.43
7.4.40.0130.00416.51
7.4.30.0130.00316.42
7.4.10.0090.00915.02
7.4.00.0040.01014.89
7.3.330.0000.00613.18
7.3.320.0000.00513.23
7.3.310.0030.00316.47
7.3.300.0030.00316.33
7.3.290.0120.00316.38
7.3.280.0050.01016.37
7.3.270.0070.01017.40
7.3.260.0070.01016.37
7.3.250.0080.01016.32
7.3.240.0120.00616.69
7.3.230.0100.00916.39
7.3.210.0110.00716.56
7.3.200.0110.01119.39
7.3.190.0080.00816.66
7.3.180.0070.00716.27
7.3.170.0060.00916.27
7.3.160.0060.00916.57
7.3.130.0070.01014.91
7.3.120.0090.00914.90
7.3.110.0090.00814.67
7.3.100.0050.00515.09
7.3.90.0050.01014.73
7.3.80.0030.01014.69
7.3.70.0080.00314.91
7.3.60.0040.00914.71
7.3.50.0040.00614.71
7.3.40.0040.00814.71
7.3.30.0030.00814.69
7.3.20.0050.00816.48
7.3.10.0060.00816.67
7.3.00.0080.00316.49
7.2.330.0070.01416.64
7.2.320.0090.01516.77
7.2.310.0030.01316.48
7.2.300.0100.01316.46
7.2.290.0100.00616.53
7.2.260.0000.01815.04
7.2.250.0110.00414.96
7.2.240.0020.01315.09
7.2.230.0070.00714.87
7.2.220.0050.00814.98
7.2.210.0040.00714.88
7.2.200.0050.00914.95
7.2.190.0040.00614.98
7.2.180.0030.00915.05
7.2.170.0050.01115.08
7.2.160.0050.00914.87
7.2.150.0050.01116.72
7.2.140.0050.00916.91
7.2.130.0080.00716.63
7.2.120.0050.01116.75
7.2.110.0090.00916.54
7.2.100.0070.01016.81
7.2.90.0060.00916.58
7.2.80.0030.00916.88
7.2.70.0050.00716.64
7.2.60.0100.00316.72
7.2.50.0090.00316.95
7.2.40.0040.00816.81
7.2.30.0030.00816.94
7.2.20.0040.00816.79
7.2.10.0110.00316.98
7.2.00.0060.00817.67
7.1.330.0070.00615.74
7.1.320.0020.00915.93
7.1.310.0010.01115.87
7.1.300.0050.00915.82
7.1.290.0040.00915.85
7.1.280.0030.00815.80
7.1.270.0090.00615.68
7.1.260.0090.00315.82
7.1.250.0090.00515.85
7.1.240.0030.01015.71
7.1.230.0000.01615.92
7.1.220.0060.00615.69
7.1.210.0000.00916.02
7.1.200.0070.00315.97
7.1.190.0030.00615.82
7.1.180.0100.00315.64
7.1.170.0070.01015.87
7.1.160.0000.01315.87
7.1.150.0100.00315.80
7.1.140.0080.00015.86
7.1.130.0000.01015.93
7.1.120.0000.01015.98
7.1.110.0000.00915.88
7.1.100.0030.01117.11
7.1.90.0000.01416.00
7.1.80.0040.00715.85
7.1.70.0030.00916.46
7.1.60.0100.01017.68
7.1.50.0020.01316.47
7.1.40.0070.00715.78
7.1.30.0000.01415.61
7.1.20.0040.00415.75
7.1.10.0040.00815.54
7.1.00.0070.04119.04
7.0.330.0050.00515.49
7.0.320.0040.00415.64
7.0.310.0070.00415.26
7.0.300.0030.00715.35
7.0.290.0040.01115.29
7.0.280.0090.00315.55
7.0.270.0040.00415.30
7.0.260.0030.00715.55
7.0.250.0030.00615.53
7.0.240.0040.00815.70
7.0.230.0030.00615.70
7.0.220.0030.00615.40
7.0.210.0000.00815.41
7.0.200.0040.00816.03
7.0.190.0030.00715.69
7.0.180.0030.00815.33
7.0.170.0030.00715.44
7.0.160.0030.00915.24
7.0.150.0100.00315.17
7.0.140.0080.03918.70
7.0.130.0060.00315.61
7.0.120.0000.00815.46
7.0.110.0040.00815.55
7.0.100.0050.00315.56
7.0.90.0060.00615.39
7.0.80.0070.00315.57
7.0.70.0040.01115.21
7.0.60.0030.04717.75
7.0.50.0140.03516.72
7.0.40.0060.04016.82
7.0.30.0160.02516.77
7.0.20.0220.02316.89
7.0.10.0070.04416.86
7.0.00.0120.03216.76
5.6.400.0040.00714.36
5.6.390.0000.01414.25
5.6.380.0030.01014.69
5.6.370.0000.01314.24
5.6.360.0000.00814.44
5.6.350.0070.01014.51
5.6.340.0060.00614.51
5.6.330.0030.01013.91
5.6.320.0080.00314.55
5.6.310.0070.00714.64
5.6.300.0090.00614.55
5.6.290.0040.01214.50
5.6.280.0020.04117.78
5.6.270.0100.00314.32
5.6.260.0070.00714.19
5.6.250.0040.00414.30
5.6.240.0060.00914.23
5.6.230.0080.00313.97
5.6.220.0030.00614.08
5.6.210.0020.05017.62
5.6.200.0100.02516.18
5.6.190.0070.04617.18
5.6.180.0230.04217.33
5.6.170.0130.03617.33
5.6.160.0090.03217.32
5.6.150.0050.02416.22
5.6.140.0050.04216.27
5.6.130.0100.02316.32
5.6.120.0040.04517.82
5.6.110.0120.03817.64
5.6.100.0080.04517.59
5.6.90.0050.03517.57
5.6.80.0040.03517.30
5.6.70.2220.02717.20
5.6.60.0060.00914.09
5.6.50.0040.00414.13
5.6.40.0120.00314.30
5.6.30.0090.00614.15
5.6.20.0030.01014.05
5.6.10.0130.00014.23
5.6.00.0030.01014.21
5.5.380.0090.00314.28
5.5.370.0070.01013.85
5.5.360.0070.00714.20
5.5.350.0100.02517.32
5.5.340.0040.03616.05
5.5.330.0070.02517.03
5.5.320.0270.03517.13
5.5.310.0160.04317.37
5.5.300.0040.03915.84
5.5.290.0030.02616.05
5.5.280.0100.02317.31
5.5.270.0070.04717.40
5.5.260.0070.02217.39
5.5.250.0050.04217.52
5.5.240.0150.04017.19
5.5.230.0000.01314.02
5.5.220.0030.00913.94
5.5.210.0030.01014.08
5.5.200.0070.01014.19
5.5.190.0120.00313.89
5.5.180.0040.00414.22
5.5.170.0070.00414.06
5.5.160.0000.01013.94
5.5.150.0070.00713.85
5.5.140.0080.00014.13
5.5.130.0060.00613.89
5.5.120.0000.00813.80
5.5.110.0040.01213.94
5.5.100.0060.01013.74
5.5.90.0040.01414.25
5.5.80.0000.01013.99
5.5.70.0040.00714.16
5.5.60.0150.00014.11
5.5.50.0040.00714.08
5.5.40.0000.01313.88
5.5.30.0050.00513.94
5.5.20.0070.00714.12
5.5.10.0090.00314.09
5.5.00.0100.00314.27
5.4.450.0100.02516.01
5.4.440.0200.02316.04
5.4.430.0280.02015.90
5.4.420.0110.02816.00
5.4.410.0130.02815.96
5.4.400.0200.03115.75
5.4.390.0100.02015.91
5.4.380.0180.02815.62
5.4.370.0230.03515.66
5.4.360.0180.02815.66
5.4.350.0270.02515.53
5.4.340.0170.03415.62
5.4.330.0060.00612.60
5.4.320.0040.02212.53
5.4.310.0040.02412.53
5.4.300.0040.02012.53
5.4.290.0080.02012.53
5.4.280.0050.02012.48
5.4.270.0050.02112.47
5.4.260.0070.02112.47
5.4.250.0030.02412.47
5.4.240.0050.02212.48
5.4.230.0030.02312.47
5.4.220.0050.02412.47
5.4.210.0020.02512.47
5.4.200.0060.02212.47
5.4.190.0060.02012.47
5.4.180.0060.02012.47
5.4.170.0040.02112.47
5.4.160.0020.02312.47
5.4.150.0060.02412.47
5.4.140.0060.02412.31
5.4.130.0090.02212.31
5.4.120.0060.01912.29
5.4.110.0030.02212.29
5.4.100.0050.02012.28
5.4.90.0040.02012.28
5.4.80.0040.02612.28
5.4.70.0040.02712.28
5.4.60.0040.02212.28
5.4.50.0070.02012.28
5.4.40.0080.01812.28
5.4.30.0070.02212.28
5.4.20.0020.02612.28
5.4.10.0070.01712.28
5.4.00.0060.02412.02
5.3.290.0110.03812.80
5.3.280.0060.03712.71
5.3.270.0070.03712.72
5.3.260.0040.04112.72
5.3.250.0070.04312.72
5.3.240.0040.03712.72
5.3.230.0050.04212.71
5.3.220.0070.03612.68
5.3.210.0050.04212.68
5.3.200.0070.03512.68
5.3.190.0050.03712.68
5.3.180.0080.03412.68
5.3.170.0060.03612.67
5.3.160.0050.03712.67
5.3.150.0070.03512.68
5.3.140.0070.03612.66
5.3.130.0070.03812.66
5.3.120.0080.04212.65
5.3.110.0070.03812.66
5.3.100.0060.04012.12
5.3.90.0050.03712.08
5.3.80.0060.03612.07
5.3.70.0050.03612.07
5.3.60.0040.03712.07
5.3.50.0050.03612.00
5.3.40.0060.03512.00
5.3.30.0040.03611.94
5.3.20.0070.03411.72
5.3.10.0080.03311.69
5.3.00.0090.03811.68
5.2.170.0040.0309.18
5.2.160.0070.0279.18
5.2.150.0060.0289.18
5.2.140.0120.0309.17
5.2.130.0040.0309.13
5.2.120.0080.0269.14
5.2.110.0050.0289.14
5.2.100.0060.0369.14
5.2.90.0060.0389.14
5.2.80.0070.0289.14
5.2.70.0040.0389.14
5.2.60.0080.0309.09
5.2.50.0050.0359.06
5.2.40.0080.0349.04
5.2.30.0040.0299.01
5.2.20.0060.0259.00
5.2.10.0050.0268.92
5.2.00.0040.0368.78
5.1.60.0040.0248.06
5.1.50.0030.0268.06
5.1.40.0040.0268.04
5.1.30.0040.0278.39
5.1.20.0030.0308.41
5.1.10.0090.0258.14
5.1.00.0060.0238.14
5.0.50.0030.0256.62
5.0.40.0060.0196.48
5.0.30.0030.0306.29
5.0.20.0050.0286.26
5.0.10.0040.0206.24
5.0.00.0030.0306.23
4.4.90.0040.0234.78
4.4.80.0040.0154.75
4.4.70.0040.0164.75
4.4.60.0040.0244.75
4.4.50.0030.0144.77
4.4.40.0040.0234.71
4.4.30.0040.0164.76
4.4.20.0030.0154.85
4.4.10.0020.0164.85
4.4.00.0030.0234.76
4.3.110.0040.0194.67
4.3.100.0010.0174.66
4.3.90.0030.0144.63
4.3.80.0040.0234.58
4.3.70.0020.0154.63
4.3.60.0000.0174.63
4.3.50.0040.0184.62
4.3.40.0020.0244.53
4.3.30.0020.0233.29
4.3.20.0020.0153.26
4.3.10.0010.0163.23
4.3.00.0030.02015.70

preferences:
47.73 ms | 400 KiB | 5 Q