3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo '<pre>'; $a = ' \\\n'; echo $a.'<br>'; if (preg_match('%\\%i', $a, $regs)) { var_dump($regs); } else { echo 'Failed.'; }

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)
8.3.60.0100.00716.50
8.3.50.0100.00816.59
8.3.40.0110.00418.75
8.3.30.0110.00418.64
8.3.20.0080.00018.66
8.3.10.0030.00620.66
8.3.00.0040.00419.38
8.2.180.0040.01418.54
8.2.170.0090.00622.96
8.2.160.0110.00320.57
8.2.150.0140.00024.18
8.2.140.0080.00024.66
8.2.130.0000.00826.16
8.2.120.0040.00419.25
8.2.110.0090.00021.09
8.2.100.0080.00417.84
8.2.90.0040.00519.30
8.2.80.0000.00819.21
8.2.70.0030.00617.75
8.2.60.0000.00718.03
8.2.50.0050.00318.07
8.2.40.0080.00017.80
8.2.30.0060.00318.10
8.2.20.0070.00317.70
8.2.10.0000.00817.62
8.2.00.0030.00717.64
8.1.280.0050.01025.92
8.1.270.0050.00224.66
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00622.58
8.1.230.0080.00420.88
8.1.220.0040.00417.74
8.1.210.0040.00418.90
8.1.200.0040.00417.23
8.1.190.0040.00417.53
8.1.180.0000.00818.10
8.1.170.0050.00318.62
8.1.160.0000.00718.77
8.1.150.0080.00018.50
8.1.140.0040.00417.37
8.1.130.0030.00317.68
8.1.120.0040.00417.41
8.1.110.0070.00017.34
8.1.100.0040.00417.39
8.1.90.0000.00717.29
8.1.80.0070.00017.25
8.1.70.0030.00317.37
8.1.60.0080.00017.51
8.1.50.0070.00017.29
8.1.40.0040.00417.33
8.1.30.0000.00817.58
8.1.20.0000.00717.49
8.1.10.0040.00417.51
8.1.00.0040.00417.39
8.0.300.0080.00020.04
8.0.290.0070.00016.75
8.0.280.0040.00418.47
8.0.270.0000.00717.16
8.0.260.0060.00016.91
8.0.250.0040.00417.01
8.0.240.0050.00217.02
8.0.230.0070.00016.93
8.0.220.0030.00316.84
8.0.210.0040.00416.80
8.0.200.0060.00016.97
8.0.190.0040.00417.04
8.0.180.0030.00516.86
8.0.170.0090.00016.88
8.0.160.0040.00416.90
8.0.150.0080.00016.76
8.0.140.0000.00916.78
8.0.130.0000.00613.34
8.0.120.0050.00316.86
8.0.110.0040.00416.84
8.0.100.0060.00316.98
8.0.90.0050.00316.95
8.0.80.0090.01316.93
8.0.70.0040.00416.92
8.0.60.0040.00416.92
8.0.50.0040.00416.92
8.0.30.0090.00917.16
8.0.20.0070.01217.06
8.0.10.0050.00216.88
8.0.00.0100.00816.83
7.4.330.0050.00012.95
7.4.320.0000.00616.41
7.4.300.0030.00316.29
7.4.290.0070.00016.41
7.4.280.0050.00316.35
7.4.270.0000.00816.57
7.4.260.0000.00513.13
7.4.250.0040.00416.43
7.4.240.0030.00316.55
7.4.230.0030.00316.38
7.4.220.0090.00616.55
7.4.210.0080.00916.54
7.4.200.0000.00716.50
7.4.190.0040.00416.59
7.4.160.0100.01016.48
7.4.150.0100.01316.58
7.4.140.0050.01316.38
7.4.130.0080.01016.45
7.4.120.0120.00516.54
7.4.110.0030.01416.50
7.4.100.0140.00316.48
7.4.90.0090.00816.37
7.4.80.0170.00619.39
7.4.70.0160.00316.49
7.4.60.0100.00616.46
7.4.50.0050.00816.33
7.4.40.0060.00616.49
7.4.30.0090.00916.36
7.4.00.0070.00814.88
7.3.330.0070.00013.05
7.3.320.0000.00613.01
7.3.310.0070.00016.31
7.3.300.0000.00616.11
7.3.290.0060.00916.20
7.3.280.0070.01016.21
7.3.270.0100.01316.36
7.3.260.0140.00316.37
7.3.250.0070.01116.36
7.3.240.0090.00916.42
7.3.230.0100.00716.39
7.3.210.0140.00316.27
7.3.200.0040.01216.36
7.3.190.0110.00616.28
7.3.180.0070.01016.28
7.3.170.0080.00816.16
7.3.160.0140.00816.33
7.3.120.0060.00914.72
7.3.110.0000.01714.88
7.3.100.0110.00314.83
7.3.90.0070.00714.60
7.3.80.0060.00314.75
7.3.70.0030.01014.79
7.3.60.0060.00614.71
7.3.50.0030.01314.88
7.3.40.0070.01014.82
7.3.30.0060.00814.68
7.3.20.0030.00716.75
7.3.10.0080.01116.09
7.3.00.0050.01216.50
7.2.330.0060.01016.40
7.2.320.0100.00716.68
7.2.310.0090.00916.57
7.2.300.0130.00316.37
7.2.290.0080.00816.49
7.2.250.0100.00714.89
7.2.240.0100.01015.00
7.2.230.0030.00915.07
7.2.220.0030.01214.71
7.2.210.0090.00315.16
7.2.200.0040.00814.88
7.2.190.0060.01014.76
7.2.180.0090.00614.75
7.2.170.0070.00715.02
7.2.130.0080.01616.29
7.2.120.0190.00816.71
7.2.110.0140.00315.86
7.2.100.0110.01116.60
7.2.90.0120.00616.69
7.2.80.0120.00316.34
7.2.70.0260.01016.74
7.2.60.0070.01816.49
7.2.50.0150.00316.41
7.2.40.0070.01316.54
7.2.30.0090.00616.41
7.2.20.0140.00316.06
7.2.10.0150.00716.18
7.2.00.0080.00817.92
7.1.330.0000.01215.54
7.1.320.0090.00615.82
7.1.310.0070.00715.87
7.1.300.0000.01315.52
7.1.290.0030.01015.46
7.1.280.0070.00715.57
7.1.270.0090.00615.84
7.1.260.0070.00715.93
7.1.250.0070.01115.05
7.1.100.0000.00817.90
7.1.70.0000.00717.21
7.1.60.0170.00719.40
7.1.50.0000.01216.96
7.1.00.0070.07322.43
7.0.200.0040.00416.72
7.0.140.0070.07022.21
7.0.120.0070.06322.27
7.0.60.0100.08319.86
7.0.50.0100.03717.77
7.0.40.0070.07720.20
7.0.30.0230.06320.18
7.0.20.0230.08020.18
7.0.10.0030.07720.20
7.0.00.0130.06720.29
5.6.280.0070.07321.06
5.6.210.0030.08320.61
5.6.200.0030.04018.22
5.6.190.0170.04320.67
5.6.180.0230.04320.69
5.6.170.0300.07020.46
5.6.160.0100.05320.37
5.6.150.0070.08018.14
5.6.140.0030.08018.12
5.6.130.0070.08018.16
5.6.120.0100.07321.11
5.6.110.0100.09320.94
5.6.100.0030.04020.97
5.6.90.0100.07720.96
5.6.80.0070.05320.50
5.5.350.0270.06020.43
5.5.340.0030.08717.92
5.5.330.0130.07720.58
5.5.320.0370.07720.41
5.5.310.0130.08320.29
5.5.300.0130.07717.91
5.5.290.0030.06017.98
5.5.280.0100.07020.88
5.5.270.0030.08720.67
5.5.260.0030.04320.75
5.5.250.0070.07720.68
5.5.240.0100.06020.16
5.4.450.0130.06019.46
5.4.440.0030.05719.48
5.4.430.0070.08319.44
5.4.420.0000.05719.43
5.4.410.0100.07719.38
5.4.400.0070.06019.18
5.4.390.0170.05318.91
5.4.380.0170.02719.14
5.4.370.0070.08019.14
5.4.360.0100.07319.09
5.4.350.0170.03719.16
5.4.340.0070.05019.11
5.4.320.0000.05718.92
5.4.310.0030.03719.00
5.4.300.0030.08319.07
5.4.290.0070.07319.14
5.4.280.0030.08019.17
5.4.270.0030.06018.87
5.4.260.0070.06719.00
5.4.250.0070.06718.91
5.4.240.0130.06318.78
5.4.230.0100.07018.78
5.4.220.0100.06019.13
5.4.210.0070.07319.17
5.4.200.0100.07019.07
5.4.190.0000.05319.07
5.4.180.0100.05019.11
5.4.170.0070.07319.16
5.4.160.0000.07319.12
5.4.150.0170.06019.05
5.4.140.0070.05716.23
5.4.130.0100.06716.35
5.4.120.0000.05716.18
5.4.110.0030.03716.33
5.4.100.0070.03716.32
5.4.90.0030.04016.30
5.4.80.0030.03316.25
5.4.70.0030.03316.22
5.4.60.0000.03716.22
5.4.50.0030.03316.21
5.4.40.0000.04016.29
5.4.30.0030.03316.34
5.4.20.0000.03716.36
5.4.10.0030.04016.34
5.4.00.0030.03315.72
5.3.290.0070.05014.58
5.3.280.0030.05714.61
5.3.270.0100.04014.52
5.3.260.0030.06314.57
5.3.250.0030.03714.55
5.3.240.0100.04714.54
5.3.230.0170.04314.56
5.3.220.0030.04714.65
5.3.210.0030.03714.50
5.3.200.0030.03714.44
5.3.190.0070.03314.50
5.3.180.0070.05014.48
5.3.170.0030.03714.38
5.3.160.0070.03314.49
5.3.150.0000.04014.49
5.3.140.0000.04014.49
5.3.130.0100.03314.55
5.3.120.0100.05014.55
5.3.110.0000.04014.48
5.3.100.0100.02713.82
5.3.90.0070.03313.94
5.3.80.0030.04013.85
5.3.70.0030.03313.94
5.3.60.0000.04013.92
5.3.50.0000.04013.88
5.3.40.0000.04313.76
5.3.30.0000.03713.74
5.3.20.0030.03313.51
5.3.10.0100.03013.60
5.3.00.0030.03313.57
5.2.170.0130.02311.13
5.2.160.0030.02711.11
5.2.150.0030.02711.03
5.2.140.0000.03011.15
5.2.130.0030.02711.00
5.2.120.0000.03311.00
5.2.110.0070.02311.03
5.2.100.0030.02710.92
5.2.90.0030.02710.95
5.2.80.0030.02710.97
5.2.70.0030.02710.97
5.2.60.0070.02311.04
5.2.50.0030.02711.16
5.2.40.0000.03010.96
5.2.30.0000.03310.96
5.2.20.0030.03010.89
5.2.10.0000.03010.94
5.2.00.0100.02010.70
5.1.60.0000.0279.95
5.1.50.0000.02310.05
5.1.40.0070.03010.02
5.1.30.0030.05310.29
5.1.20.0100.02710.34
5.1.10.0100.0539.91
5.1.00.0030.05710.03
5.0.50.0100.0378.52
5.0.40.0070.0308.42
5.0.30.0070.0578.28
5.0.20.0030.0208.26
5.0.10.0000.0278.07
5.0.00.0100.0278.20
4.4.90.0030.0137.98
4.4.80.0030.0177.98
4.4.70.0030.0137.98
4.4.60.0000.0177.98
4.4.50.0030.0107.98
4.4.40.0000.0237.98
4.4.30.0000.0177.98
4.4.20.0030.0137.98
4.4.10.0030.0307.98
4.4.00.0030.0477.98
4.3.110.0030.0177.98
4.3.100.0030.0177.98
4.3.90.0000.0207.98
4.3.80.0230.0137.98
4.3.70.0070.0107.98
4.3.60.0100.0277.98
4.3.50.0000.0377.98
4.3.40.0000.0407.98
4.3.30.0070.0307.98
4.3.20.0030.0207.98
4.3.10.0030.0277.98
4.3.00.0030.0177.98

preferences:
38.84 ms | 401 KiB | 5 Q