3v4l.org

run code in 300+ PHP versions simultaneously
<?php //heredoc $data = <<<__DATA__ ddd_DDD foo_FOO foo_FOD foo_bar FOO_foo ccc_cCc ddd_ddd __DATA__; $pattern = '~^([a-z]{3})_(?=[A-Z]{3})(?i:\1)$~'; echo "<pre>"; //foreach(preg_split('~[\r\n]+~', $data) as $key => $line){ foreach(explode("\n", $data) as $key => $line){ echo $key . " => " . $line . " => " . (preg_match( $pattern, $line, $matches) === 1 ? "true" : "false") . "<br>"; } echo "</pre>";

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)
8.3.60.0140.00716.63
8.3.50.0110.00617.52
8.3.40.0100.01019.09
8.3.30.0120.00318.83
8.3.20.0040.00418.86
8.3.10.0060.00320.66
8.3.00.0110.00019.50
8.2.180.0090.00616.63
8.2.170.0150.00022.96
8.2.160.0030.01021.32
8.2.150.0070.00024.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0040.00421.05
8.2.110.0090.00020.58
8.2.100.0090.00317.97
8.2.90.0030.00619.30
8.2.80.0000.00719.34
8.2.70.0080.00017.75
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0000.00818.34
8.2.30.0020.00518.12
8.2.20.0040.00417.87
8.2.10.0080.00017.95
8.2.00.0040.00417.86
8.1.280.0110.00425.92
8.1.270.0090.00924.66
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0090.00023.97
8.1.230.0040.00820.94
8.1.220.0000.00817.74
8.1.210.0000.00918.88
8.1.200.0090.00017.35
8.1.190.0040.00417.52
8.1.180.0000.00818.10
8.1.170.0050.00318.78
8.1.160.0000.00818.93
8.1.150.0000.00718.84
8.1.140.0080.00017.48
8.1.130.0030.00317.87
8.1.120.0020.01017.57
8.1.110.0040.00417.48
8.1.100.0040.00417.63
8.1.90.0080.00017.61
8.1.80.0000.00717.57
8.1.70.0030.00317.52
8.1.60.0060.00317.75
8.1.50.0000.00717.57
8.1.40.0090.00017.66
8.1.30.0000.00817.64
8.1.20.0000.00817.80
8.1.10.0070.00017.64
8.1.00.0070.00017.45
8.0.300.0060.00319.93
8.0.290.0060.00316.63
8.0.280.0000.00718.47
8.0.270.0000.00717.27
8.0.260.0000.00717.05
8.0.250.0070.00017.08
8.0.240.0000.00717.18
8.0.230.0070.00017.15
8.0.220.0050.00317.15
8.0.210.0040.00317.07
8.0.200.0000.00817.00
8.0.190.0000.00717.14
8.0.180.0040.00417.01
8.0.170.0050.00317.00
8.0.160.0000.00717.20
8.0.150.0000.00817.06
8.0.140.0000.00817.11
8.0.130.0060.00013.49
8.0.120.0040.00417.07
8.0.110.0000.00717.08
8.0.100.0040.00317.14
8.0.90.0050.00217.14
8.0.80.0100.00617.16
8.0.70.0030.00517.05
8.0.60.0090.00016.95
8.0.50.0000.00716.89
8.0.30.0080.01017.35
8.0.20.0090.00917.30
8.0.10.0040.00417.16
8.0.00.0110.00916.87
7.4.330.0000.00513.13
7.4.320.0030.00316.67
7.4.300.0060.00016.72
7.4.290.0000.00716.62
7.4.280.0030.00616.66
7.4.270.0030.00316.86
7.4.260.0030.00313.50
7.4.250.0000.00816.71
7.4.240.0040.00416.82
7.4.230.0000.00716.93
7.4.220.0000.01816.66
7.4.210.0070.00916.83
7.4.200.0050.00316.69
7.4.190.0060.00316.63
7.4.160.0100.00616.56
7.4.150.0090.00916.63
7.4.140.0100.00916.71
7.4.130.0080.01016.62
7.4.120.0040.01316.74
7.4.110.0070.01116.64
7.4.100.0130.00416.60
7.4.90.0060.01216.68
7.4.80.0080.01616.89
7.4.70.0150.00316.55
7.4.60.0130.00616.61
7.4.50.0040.00816.72
7.4.40.0090.00616.62
7.4.30.0100.00716.93
7.4.00.0070.00715.24
7.3.330.0030.00313.36
7.3.320.0060.00013.31
7.3.310.0050.00316.29
7.3.300.0070.00016.51
7.3.290.0030.01216.48
7.3.280.0060.01116.49
7.3.270.0030.01516.74
7.3.260.0150.00916.50
7.3.250.0050.01316.63
7.3.240.0100.00716.58
7.3.230.0080.00816.39
7.3.210.0140.00516.57
7.3.200.0060.01019.39
7.3.190.0120.01116.79
7.3.180.0070.01016.72
7.3.170.0070.00716.66
7.3.160.0060.01016.81
7.3.120.0070.00915.08
7.3.110.0060.00614.96
7.3.100.0070.00415.20
7.3.90.0040.00814.83
7.3.80.0060.00614.79
7.3.70.0080.00315.10
7.3.60.0000.01115.13
7.3.50.0000.01114.69
7.3.40.0000.01114.63
7.3.30.0040.00715.12
7.3.20.0040.00816.98
7.3.10.0110.00016.84
7.3.00.0000.01116.93
7.2.330.0110.00716.59
7.2.320.0120.00616.57
7.2.310.0130.01316.84
7.2.300.0110.01116.66
7.2.290.0150.00716.81
7.2.250.0090.00915.11
7.2.240.0070.01015.32
7.2.230.0060.00615.21
7.2.220.0040.00915.04
7.2.210.0120.00015.32
7.2.200.0060.00615.27
7.2.190.0000.01114.88
7.2.180.0030.00915.25
7.2.170.0070.00615.30
7.2.60.0040.01117.30
7.1.330.0030.00915.71
7.1.320.0040.00816.11
7.1.310.0040.00715.91
7.1.300.0070.00415.96
7.1.290.0070.00315.73
7.1.280.0040.00716.05
7.1.270.0070.00415.90
7.1.260.0040.00716.01
7.1.200.0060.00615.83
7.1.70.0000.00817.25
7.1.60.0070.00717.10
7.1.50.0000.01816.80
7.1.00.0070.07322.28
7.0.200.0070.00717.00
7.0.140.0000.07322.08
7.0.120.0000.07722.13
7.0.60.0300.07320.00
7.0.50.0130.07317.68
7.0.40.0330.03720.32
7.0.30.0200.04720.23
7.0.20.0230.03720.21
7.0.10.0230.04020.23
7.0.00.0230.04019.97
5.6.280.0100.07020.91
5.6.210.0070.05720.71
5.6.200.0130.07018.16
5.6.190.0230.04020.60
5.6.180.0170.04720.49
5.6.170.0300.03320.50
5.6.160.0200.04020.35
5.6.150.0230.03720.11
5.6.140.0200.04720.41
5.6.130.0200.04720.33
5.6.120.0170.05020.41
5.6.110.0200.07320.09
5.6.100.0270.06020.43
5.6.90.0200.04020.44
5.6.80.0300.05319.75
5.6.70.0170.04019.81
5.6.60.0230.05319.79
5.6.50.0170.04019.76
5.6.40.0200.03719.69
5.6.30.0200.04019.79
5.6.20.0230.04019.70
5.6.10.0230.03319.78
5.6.00.0200.08319.69
5.5.350.0070.07720.29
5.5.340.0070.04318.02
5.5.330.0200.04320.23
5.5.320.0230.04320.40
5.5.310.0170.04320.21
5.5.300.0130.05720.08
5.5.290.0200.07020.08
5.5.280.0230.05020.18
5.5.270.0300.04019.92
5.5.260.0230.04720.16
5.5.250.0230.03720.05
5.5.240.0230.03319.36
5.5.230.0200.04719.29
5.5.220.0100.05019.58
5.5.210.0270.03719.65
5.5.200.0200.03719.28
5.5.190.0170.04319.52
5.5.180.0200.04019.24
5.5.160.0170.04019.55
5.5.150.0400.07319.58
5.5.140.0300.07319.46
5.5.130.0330.07319.58
5.5.120.0370.05719.60
5.5.110.0300.07719.32
5.5.100.0330.06319.33
5.5.90.0300.07319.39
5.5.80.0230.05719.37
5.5.70.0370.07019.45
5.5.60.0330.07019.52
5.5.50.0370.07019.16
5.5.40.0270.06319.46
5.5.30.0400.05019.52
5.5.20.0300.06319.26
5.5.10.0330.07319.47
5.5.00.0300.07319.53
5.4.450.0230.07719.47
5.4.440.0200.04719.47
5.4.430.0170.04319.41
5.4.420.0170.04019.48
5.4.410.0170.05019.11
5.4.400.0230.03719.12
5.4.390.0200.03319.15
5.4.380.0170.04319.00
5.4.370.0170.03719.15
5.4.360.0170.04019.12
5.4.350.0200.03719.16
5.4.340.0200.04318.92
5.4.320.0230.04018.93
5.4.310.0330.05718.93
5.4.300.0330.04019.14
5.4.290.0300.06018.88
5.4.280.0300.06718.91
5.4.270.0230.07718.79
5.4.260.0370.06719.00
5.4.250.0470.06319.11
5.4.240.0370.06019.14
5.4.230.0300.07018.91
5.4.220.0270.04319.11
5.4.210.0370.06319.07
5.4.200.0470.06019.17
5.4.190.0300.06019.17
5.4.180.0270.05719.17
5.4.170.0300.06319.17
5.4.160.0300.05319.06
5.4.150.0270.05719.06
5.4.140.0270.05016.37
5.4.130.0200.04716.16
5.4.120.0430.06316.23
5.4.110.0600.04316.23
5.4.100.0230.05316.41
5.4.90.0300.06716.61
5.4.80.0300.07016.25
5.4.70.0330.07016.34
5.4.60.0330.06316.34
5.4.50.0270.04316.63
5.4.40.0370.06316.26
5.4.30.0330.04316.24
5.4.20.0370.05716.28
5.4.10.0330.05716.33
5.4.00.0370.06015.61
5.3.290.0230.05714.62
5.3.280.0330.05314.53
5.3.270.0330.06014.54
5.3.260.0300.05014.55
5.3.250.0530.02714.54
5.3.240.0430.03714.57
5.3.230.0300.05014.47
5.3.220.0300.05314.50
5.3.210.0200.04314.48
5.3.200.0300.07314.52
5.3.190.0330.06014.49
5.3.180.0330.07014.58
5.3.170.0230.05314.49
5.3.160.0270.07314.44
5.3.150.0230.04714.38
5.3.140.0330.06714.52
5.3.130.0230.04314.44
5.3.120.0270.06014.42
5.3.110.0430.04314.36
5.3.100.0300.06013.97
5.3.90.0230.03713.96
5.3.80.0300.06713.98
5.3.70.0300.05313.95
5.3.60.0400.04713.98
5.3.50.0300.05313.89
5.3.40.0330.03313.89
5.3.30.0270.04013.87
5.3.20.0270.03713.70
5.3.10.0300.05013.59
5.3.00.0370.04713.61
5.2.170.0200.04313.28
5.2.160.0300.03313.28
5.2.150.0330.05313.28
5.2.140.0330.05313.28
5.2.130.0270.03713.28
5.2.120.0300.03013.28
5.2.110.0270.04713.28
5.2.100.0230.02713.28
5.2.90.0230.03013.28
5.2.80.0200.03013.28
5.2.70.0230.02713.28
5.2.60.0170.04713.28
5.2.50.0230.05713.28
5.2.40.0270.03013.28
5.2.30.0200.05713.28
5.2.20.0300.05013.28
5.2.10.0130.06313.28
5.2.00.0170.04713.28
5.1.60.0130.05713.28
5.1.50.0200.03313.28
5.1.40.0170.04313.28
5.1.30.0170.04013.28
5.1.20.0400.02713.28
5.1.10.0270.05013.28
5.1.00.0200.02713.28
5.0.50.0100.05013.28
5.0.40.0100.03713.28
5.0.30.0100.06013.28
5.0.20.0130.03313.28
5.0.10.0100.03013.28
5.0.00.0070.06313.28
4.4.90.0030.04013.28
4.4.80.0130.02313.28
4.4.70.0170.02713.28
4.4.60.0100.04013.28
4.4.50.0170.02313.28
4.4.40.0070.05013.28
4.4.30.0130.01313.28
4.4.20.0070.02013.28
4.4.10.0100.03713.28
4.4.00.0130.04713.28
4.3.110.0130.01313.28
4.3.100.0070.03713.28
4.3.90.0070.02013.28
4.3.80.0100.02313.28
4.3.70.0100.02313.28
4.3.60.0170.02013.28
4.3.50.0070.03313.28
4.3.40.0070.04313.28
4.3.30.0070.03713.28
4.3.20.0100.03313.28
4.3.10.0030.03013.28
4.3.00.0100.03013.28

preferences:
50.66 ms | 400 KiB | 5 Q