3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(strlen(𠀋)); 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\xFF", $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)
8.3.60.0190.00318.43
8.3.50.0130.00722.81
8.3.40.0130.01018.96
8.3.30.0120.00318.81
8.3.20.0120.00620.18
8.3.10.0110.00723.39
8.3.00.0140.00719.51
8.2.180.0030.01318.54
8.2.170.0100.01022.96
8.2.160.0160.00620.53
8.2.150.0060.00324.18
8.2.140.0090.00924.66
8.2.130.0130.00626.16
8.2.120.0040.00421.10
8.2.110.0210.00319.33
8.2.100.0140.00317.72
8.2.90.0040.00417.63
8.2.80.0040.00418.96
8.2.70.0060.00317.75
8.2.60.0000.00817.93
8.2.50.0030.00618.07
8.2.40.0040.00418.22
8.2.30.0040.00419.34
8.2.20.0050.00317.63
8.2.10.0040.00418.07
8.2.00.0040.00417.65
8.1.280.0410.00725.92
8.1.270.0160.00323.96
8.1.260.0140.00426.35
8.1.250.0000.01828.09
8.1.240.0060.00319.14
8.1.230.0040.00717.70
8.1.220.0040.00417.74
8.1.210.0000.00918.77
8.1.200.0000.01017.35
8.1.190.0030.00517.23
8.1.180.0030.00618.10
8.1.170.0040.00418.57
8.1.160.0050.00219.02
8.1.150.0070.00018.94
8.1.140.0000.00717.42
8.1.130.0000.00717.79
8.1.120.0000.00717.35
8.1.110.0030.00517.45
8.1.100.0000.00717.47
8.1.90.0020.00517.43
8.1.80.0040.00417.38
8.1.70.0000.00717.41
8.1.60.0040.00417.54
8.1.50.0030.00617.50
8.1.40.0030.00617.39
8.1.30.0040.00417.56
8.1.20.0000.00817.51
8.1.10.0080.00017.50
8.1.00.0000.00717.56
8.0.300.0040.00420.53
8.0.290.0040.00416.75
8.0.280.0000.00720.15
8.0.270.0000.00717.27
8.0.260.0030.00318.38
8.0.250.0000.00716.94
8.0.240.0040.00416.94
8.0.230.0000.00817.06
8.0.220.0000.00716.92
8.0.210.0000.00917.00
8.0.200.0000.00717.04
8.0.190.0030.00416.98
8.0.180.0000.00717.04
8.0.170.0000.00717.07
8.0.160.0020.00516.96
8.0.150.0070.00016.94
8.0.140.0070.00016.85
8.0.130.0060.00013.50
8.0.120.0050.00316.89
8.0.110.0000.00716.88
8.0.100.0040.00416.97
8.0.90.0000.00717.05
8.0.80.0070.01016.89
8.0.70.0000.00816.78
8.0.60.0040.00417.03
8.0.50.0040.00416.86
8.0.30.0070.01217.11
8.0.20.0100.00817.40
8.0.10.0040.00417.04
8.0.00.0060.01216.78
7.4.330.0030.00315.05
7.4.320.0060.00016.60
7.4.300.0000.00616.63
7.4.290.0000.00716.69
7.4.280.0050.00316.61
7.4.270.0080.00316.58
7.4.260.0000.00716.71
7.4.250.0060.00316.72
7.4.240.0010.00616.59
7.4.230.0040.00416.58
7.4.220.0100.00716.79
7.4.210.0100.00316.88
7.4.200.0070.00016.63
7.4.160.0100.00616.72
7.4.150.0150.00417.40
7.4.140.0120.00717.86
7.4.130.0100.00716.76
7.4.120.0090.00816.61
7.4.110.0040.01316.73
7.4.100.0150.00316.62
7.4.90.0100.00716.64
7.4.80.0110.00619.39
7.4.70.0140.00316.70
7.4.60.0000.01716.64
7.4.50.0080.00016.40
7.4.40.0080.00816.62
7.4.30.0180.00416.85
7.4.00.0040.01115.34
7.3.330.0030.00313.33
7.3.320.0030.00313.21
7.3.310.0040.00416.43
7.3.300.0000.00716.45
7.3.290.0040.01116.48
7.3.280.0070.01016.40
7.3.270.0120.00917.40
7.3.260.0100.01016.65
7.3.250.0110.00516.58
7.3.240.0080.00816.66
7.3.230.0130.00316.59
7.3.210.0070.01016.71
7.3.200.0000.01919.39
7.3.190.0090.00816.48
7.3.180.0090.00616.49
7.3.170.0060.01516.34
7.3.160.0070.01016.53
7.2.330.0110.00616.68
7.2.320.0070.01116.69
7.2.310.0090.00916.69
7.2.300.0070.01016.52
7.2.290.0090.00616.62
7.2.60.0130.00316.77
7.2.00.0040.01119.11
7.1.200.0110.00815.76
7.1.100.0030.01318.20
7.1.70.0030.00617.36
7.1.60.0070.01719.46
7.1.50.0170.00317.16
7.1.00.0000.08022.32
7.0.200.0030.00616.86
7.0.140.0100.06722.07
7.0.60.0030.07020.04
7.0.50.0030.07717.84
7.0.40.0030.08020.26
7.0.30.0130.04720.19
7.0.20.0230.08720.18
7.0.10.0100.08320.31
7.0.00.0030.08720.35
5.6.280.0070.07021.04
5.6.210.0100.08020.56
5.6.200.0030.05718.12
5.6.190.0130.08020.26
5.6.180.0370.05020.67
5.6.170.0270.05320.50
5.6.160.0070.08720.48
5.6.150.0030.07718.15
5.6.140.0130.07318.20
5.6.130.0030.04018.11
5.6.120.0070.08021.11
5.6.110.0070.08021.13
5.6.100.0100.07020.95
5.6.90.0070.07321.07
5.6.80.0030.04020.41
5.6.70.3530.03320.47
5.5.350.0100.03320.43
5.5.340.0170.07017.91
5.5.330.0030.05020.37
5.5.320.0400.07320.30
5.5.310.0330.03720.16
5.5.300.0070.05017.97
5.5.290.0000.04317.99
5.5.280.0130.07720.68
5.5.270.0100.06020.83
5.5.260.0100.07320.72
5.5.250.0030.04320.68
5.5.240.0200.07720.25
5.4.450.0330.07719.57
5.4.440.0270.05719.38
5.4.430.0300.04319.24
5.4.420.0300.03319.56
5.4.410.0230.04319.29
5.4.400.0430.03319.24
5.4.390.0270.03719.24
5.4.380.0300.06019.13
5.4.370.0330.07019.13
5.4.360.0270.05019.09
5.4.350.0270.04018.78
5.4.340.0300.03318.93
5.4.320.0200.04319.21
5.4.310.0270.07019.24
5.4.300.0270.03719.13
5.4.290.0230.04319.24
5.4.280.0270.05019.05
5.4.270.0400.04019.23
5.4.260.0500.06019.05
5.4.250.0400.03318.91
5.4.240.0400.04319.08
5.4.230.0300.04018.91
5.4.220.0300.03718.91
5.4.210.0300.03718.93
5.4.200.0370.04719.11
5.4.190.0400.04319.05
5.4.180.0400.02719.07
5.4.170.0430.03318.77
5.4.160.0270.04018.71
5.4.150.0330.05319.11
5.4.140.0530.06716.45
5.4.130.0330.03716.22
5.4.120.0400.03016.22
5.4.110.0400.03316.48
5.4.100.0300.03716.07
5.4.90.0230.04016.38
5.4.80.0330.03316.46
5.4.70.0270.04016.17
5.4.60.0270.03716.36
5.4.50.0370.04716.28
5.4.40.0300.03716.20
5.4.30.0330.03716.31
5.4.20.0270.03716.43
5.4.10.0470.03316.36
5.4.00.0400.04315.73
5.3.290.0470.06014.60
5.3.280.0370.03314.49
5.3.270.0400.06014.43
5.3.260.0400.07314.45
5.3.250.0370.03714.51
5.3.240.0270.04714.43
5.3.230.0370.05014.44
5.3.220.0400.04714.51
5.3.210.0400.05014.52
5.3.200.0370.07014.58
5.3.190.0470.05314.41
5.3.180.0400.06314.44
5.3.170.0430.06014.58
5.3.160.0430.05314.61
5.3.150.0400.05014.50
5.3.140.0330.07714.39
5.3.130.0400.03314.38
5.3.120.0330.05314.59
5.3.110.0400.06314.38
5.3.100.0430.06314.14
5.3.90.0370.06713.89
5.3.80.0370.06013.96
5.3.70.0430.04013.89
5.3.60.0400.04013.89
5.3.50.0400.04713.96
5.3.40.0400.06313.89
5.3.30.0300.03713.89
5.3.20.0430.06313.89
5.3.10.0370.07313.89
5.3.00.0330.03313.89
5.2.170.0300.03013.89
5.2.160.0270.03313.89
5.2.150.0370.04013.89
5.2.140.0230.05013.89
5.2.130.0400.02713.89
5.2.120.0300.05713.89
5.2.110.0370.04713.89
5.2.100.0270.03313.89
5.2.90.0330.05313.89
5.2.80.0330.05313.89
5.2.70.0300.05313.89
5.2.60.0430.04713.89
5.2.50.0370.05313.89
5.2.40.0270.04013.89
5.2.30.0330.03013.89
5.2.20.0370.02313.89
5.2.10.0230.03013.89
5.2.00.0270.02313.89
5.1.60.0300.04713.89
5.1.50.0170.03013.89
5.1.40.0270.02713.89
5.1.30.0300.04313.89
5.1.20.0200.03013.89
5.1.10.0230.05013.89
5.1.00.0200.03013.89
5.0.50.0170.03713.89
5.0.40.0100.02713.89
5.0.30.0070.04313.89
5.0.20.0070.04313.89
5.0.10.0130.02713.89
5.0.00.0100.04313.89
4.4.90.0070.02013.89
4.4.80.0070.02713.89
4.4.70.0100.02013.89
4.4.60.0200.02313.89
4.4.50.0130.02013.89
4.4.40.0070.04013.89
4.4.30.0070.02013.89
4.4.20.0130.03313.89
4.4.10.0130.02713.89
4.4.00.0130.04713.89
4.3.110.0100.03013.89
4.3.100.0130.03313.89
4.3.90.0130.03313.89
4.3.80.0130.05013.89
4.3.70.0070.01713.89
4.3.60.0070.02313.89
4.3.50.0130.02013.89
4.3.40.0100.05013.89
4.3.30.0070.03013.89
4.3.20.0030.02013.89
4.3.10.0070.03313.89
4.3.00.0100.01713.89

preferences:
50.58 ms | 401 KiB | 5 Q