3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_match('/あ/u', "\xE3\x81\x82", $matches)); var_dump(preg_match('//u', "\xF0\xA0\x80\x8B", $matches)); var_dump(preg_match('//u', "𠀋", $matches)); var_dump("\xF0A0808B" == "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)
8.3.60.0160.00316.63
8.3.50.0100.01123.07
8.3.40.0150.00018.67
8.3.30.0000.01418.91
8.3.20.0040.00420.34
8.3.10.0050.00323.48
8.3.00.0080.00019.38
8.2.180.0100.00716.50
8.2.170.0000.01422.96
8.2.160.0070.00720.38
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0030.00526.16
8.2.120.0040.01121.35
8.2.110.0050.00521.06
8.2.100.0110.00017.72
8.2.90.0080.00017.91
8.2.80.0080.00017.97
8.2.70.0030.00617.50
8.2.60.0000.00817.80
8.2.50.0040.00418.07
8.2.40.0030.00618.09
8.2.30.0000.00818.05
8.2.20.0030.00517.79
8.2.10.0040.00417.92
8.2.00.0030.00517.81
8.1.280.0100.01025.92
8.1.270.0030.00624.02
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0030.00622.48
8.1.230.0040.00820.90
8.1.220.0040.00417.74
8.1.210.0030.00618.84
8.1.200.0060.00617.23
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0000.00818.66
8.1.160.0040.00421.88
8.1.150.0000.00718.81
8.1.140.0030.00717.32
8.1.130.0030.00317.82
8.1.120.0070.00017.48
8.1.110.0040.00417.46
8.1.100.0070.00017.53
8.1.90.0000.00717.41
8.1.80.0040.00417.40
8.1.70.0030.00317.38
8.1.60.0030.00517.50
8.1.50.0060.00317.52
8.1.40.0040.00417.45
8.1.30.0000.00817.64
8.1.20.0040.00417.64
8.1.10.0000.00717.59
8.1.00.0030.00617.41
8.0.300.0040.00419.81
8.0.290.0000.00716.75
8.0.280.0030.00318.26
8.0.270.0070.00017.01
8.0.260.0030.00317.19
8.0.250.0000.00717.06
8.0.240.0040.00417.01
8.0.230.0050.00217.01
8.0.220.0050.00316.87
8.0.210.0030.00516.84
8.0.200.0020.00516.92
8.0.190.0040.00417.06
8.0.180.0050.00317.00
8.0.170.0030.00516.98
8.0.160.0000.00817.02
8.0.150.0000.00716.87
8.0.140.0040.00416.74
8.0.130.0060.00313.38
8.0.120.0030.00716.85
8.0.110.0040.00416.85
8.0.100.0000.00816.99
8.0.90.0000.00816.82
8.0.80.0160.00016.91
8.0.70.0040.00416.84
8.0.60.0040.00416.83
8.0.50.0040.00416.96
8.0.30.0130.01117.04
8.0.20.0140.00617.40
8.0.10.0070.00016.87
8.0.00.0150.00716.59
7.4.330.0000.00515.05
7.4.320.0030.00316.56
7.4.300.0020.00516.54
7.4.290.0040.00416.59
7.4.280.0080.00016.65
7.4.270.0030.00416.72
7.4.260.0020.00516.60
7.4.250.0000.00816.62
7.4.240.0020.00616.70
7.4.230.0070.00016.47
7.4.220.0090.01516.67
7.4.210.0070.00716.82
7.4.200.0050.00216.50
7.4.160.0100.01016.47
7.4.150.0140.00517.40
7.4.140.0160.00517.86
7.4.130.0080.00816.52
7.4.120.0100.00716.56
7.4.110.0140.00416.79
7.4.100.0100.00716.41
7.4.90.0130.01016.62
7.4.80.0080.00819.39
7.4.70.0070.01016.59
7.4.60.0040.01116.48
7.4.50.0030.00316.63
7.4.40.0130.00316.57
7.4.30.0140.00316.57
7.4.00.0030.01314.95
7.3.330.0000.00513.21
7.3.320.0020.00213.32
7.3.310.0000.00716.41
7.3.300.0000.00716.33
7.3.290.0120.00316.29
7.3.280.0130.00516.32
7.3.270.0100.00717.40
7.3.260.0120.00616.47
7.3.250.0100.00716.36
7.3.240.0100.00616.33
7.3.230.0130.00316.39
7.3.210.0080.00816.27
7.3.200.0130.00519.39
7.3.190.0120.00916.52
7.3.180.0030.01316.58
7.3.170.0060.00916.40
7.3.160.0100.00616.52
7.3.120.0090.00914.66
7.3.110.0110.00415.10
7.3.100.0110.00015.08
7.3.90.0000.01414.89
7.3.80.0090.00314.93
7.3.70.0070.00714.62
7.3.60.0070.00714.96
7.3.50.0030.01314.88
7.3.40.0050.00514.91
7.3.30.0110.00314.69
7.3.20.0030.00916.79
7.3.10.0130.00316.50
7.3.00.0030.00916.68
7.2.330.0070.01016.63
7.2.320.0100.00716.39
7.2.310.0120.00616.52
7.2.300.0060.01016.61
7.2.290.0130.00316.57
7.2.250.0070.01315.20
7.2.240.0100.00315.00
7.2.230.0060.00615.11
7.2.220.0030.00914.73
7.2.210.0060.00315.05
7.2.200.0060.00914.96
7.2.190.0070.01015.04
7.2.180.0100.00614.73
7.2.170.0070.00714.96
7.2.60.0070.01016.94
7.2.00.0080.00319.23
7.1.330.0070.01015.63
7.1.320.0080.00815.65
7.1.310.0030.00615.94
7.1.300.0000.01115.83
7.1.290.0140.00015.54
7.1.280.0060.00915.79
7.1.270.0100.00315.84
7.1.260.0040.00815.94
7.1.200.0000.00915.88
7.1.100.0060.00618.03
7.1.70.0030.00617.33
7.1.60.0100.01419.46
7.1.50.0090.01316.77
7.1.00.0030.07722.36
7.0.200.0000.00916.93
7.0.140.0030.07322.07
7.0.60.0200.07019.75
7.0.50.0030.04017.89
7.0.40.0100.08320.14
7.0.30.0230.08320.03
7.0.20.0330.05320.01
7.0.10.0100.06020.35
7.0.00.0000.05320.03
5.6.280.0000.07721.06
5.6.210.0030.07020.45
5.6.200.0100.07018.19
5.6.190.0100.08320.48
5.6.180.0000.08320.33
5.6.170.0200.05720.50
5.6.160.0030.04320.40
5.6.150.0030.04018.08
5.6.140.0000.08718.12
5.6.130.0030.08018.18
5.6.120.0100.09020.89
5.6.110.0100.06321.04
5.6.100.0070.08721.08
5.6.90.0030.07021.05
5.6.80.0130.05020.52
5.6.70.4500.03720.52
5.5.350.0170.07720.29
5.5.340.0070.05017.92
5.5.330.0000.08020.21
5.5.320.0230.05320.29
5.5.310.0170.05320.32
5.5.300.0030.03717.98
5.5.290.0070.07717.92
5.5.280.0100.08020.95
5.5.270.0070.08320.95
5.5.260.0070.08720.75
5.5.250.0100.08320.77
5.5.240.0170.07720.25
5.4.450.0230.04719.55
5.4.440.0300.05019.13
5.4.430.0100.04319.40
5.4.420.0030.05019.20
5.4.410.0370.04319.13
5.4.400.0030.04319.22
5.4.390.0070.05018.91
5.4.380.0230.06718.62
5.4.370.0270.06018.57
5.4.360.0330.05718.61
5.4.350.0370.06018.64
5.4.340.0430.05318.61
5.4.320.0100.03312.45
5.4.310.0060.03712.45
5.4.300.0040.03712.45
5.4.290.0030.04712.45
5.4.280.0040.03612.34
5.4.270.0080.04012.34
5.4.260.0100.03712.35
5.4.250.0040.04212.34
5.4.240.0050.04012.35
5.4.230.0040.04512.34
5.4.220.0040.03712.34
5.4.210.0050.03612.34
5.4.200.0040.03912.34
5.4.190.0080.03412.33
5.4.180.0060.04312.33
5.4.170.0080.03412.35
5.4.160.0100.03212.34
5.4.150.0020.03912.34
5.4.140.0050.03712.02
5.4.130.0060.04112.01
5.4.120.0050.04111.96
5.4.110.0110.03011.96
5.4.100.0060.03511.96
5.4.90.0080.04211.96
5.4.80.0070.04011.96
5.4.70.0060.03511.96
5.4.60.0080.03511.96
5.4.50.0080.03511.96
5.4.40.0090.04211.95
5.4.30.0080.04011.95
5.4.20.0080.03311.95
5.4.10.0060.03411.95
5.4.00.0080.03711.43
5.3.290.0100.04012.80
5.3.280.0090.04212.71
5.3.270.0090.04112.73
5.3.260.0090.03912.72
5.3.250.0090.03512.72
5.3.240.0080.03612.72
5.3.230.0070.03612.71
5.3.220.0110.03612.68
5.3.210.0060.04212.68
5.3.200.0110.03312.68
5.3.190.0090.03912.68
5.3.180.0070.03512.67
5.3.170.0030.04612.67
5.3.160.0090.04312.68
5.3.150.0090.04212.67
5.3.140.0070.03812.66
5.3.130.0080.03712.66
5.3.120.0100.03512.66
5.3.110.0100.03412.66
5.3.100.0030.03912.12
5.3.90.0050.03712.08
5.3.80.0070.03512.08
5.3.70.0060.03612.08
5.3.60.0050.03812.06
5.3.50.0050.04012.00
5.3.40.0080.04012.00
5.3.30.0090.04211.95
5.3.20.0040.04411.72
5.3.10.0120.03511.69
5.3.00.0040.03711.68
5.2.170.0050.0309.18
5.2.160.0030.0319.18
5.2.150.0020.0339.18
5.2.140.0030.0329.17
5.2.130.0050.0289.14
5.2.120.0100.0349.14
5.2.110.0060.0289.14
5.2.100.0090.0259.14
5.2.90.0060.0279.14
5.2.80.0020.0339.14
5.2.70.0060.0309.14
5.2.60.0040.0339.09
5.2.50.0050.0319.05
5.2.40.0060.0279.04
5.2.30.0040.0349.02
5.2.20.0060.0299.00
5.2.10.0060.0338.92
5.2.00.0040.0318.78
5.1.60.0030.0248.06
5.1.50.0030.0258.05
5.1.40.0050.0238.04
5.1.30.0040.0278.39
5.1.20.0050.0308.41
5.1.10.0050.0268.14
5.1.00.0070.0228.13
5.0.50.0040.0206.62
5.0.40.0040.0246.47
5.0.30.0040.0316.29
5.0.20.0030.0196.26
5.0.10.0020.0206.23
5.0.00.0040.0296.23
4.4.90.0010.0174.77
4.4.80.0030.0214.76
4.4.70.0050.0154.76
4.4.60.0020.0164.76
4.4.50.0010.0164.77
4.4.40.0020.0264.71
4.4.30.0050.0134.76
4.4.20.0010.0174.84
4.4.10.0020.0174.85
4.4.00.0040.0234.76
4.3.110.0020.0164.67
4.3.100.0010.0174.66
4.3.90.0020.0154.63
4.3.80.0020.0254.58
4.3.70.0030.0144.63
4.3.60.0030.0144.63
4.3.50.0020.0154.63
4.3.40.0040.0304.54
4.3.30.0030.0153.29
4.3.20.0040.0163.27
4.3.10.0020.0173.22
4.3.00.0000.02015.70

preferences:
37.19 ms | 401 KiB | 5 Q