3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo '<pre>'; $a = ' \\\n'; echo $a.'<br>'; if (preg_match('%[\\]{2}%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)
8.3.40.0120.00318.87
8.3.30.0100.00320.35
8.3.20.0040.00420.04
8.3.10.0040.00422.14
8.3.00.0030.00622.34
8.2.170.0110.00422.96
8.2.160.0100.00620.39
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0040.00420.74
8.2.110.0070.00321.01
8.2.100.0040.00718.09
8.2.90.0080.00019.34
8.2.80.0040.00419.25
8.2.70.0090.00017.50
8.2.60.0000.00917.93
8.2.50.0090.00018.07
8.2.40.0040.00418.28
8.2.30.0040.00419.33
8.2.20.0080.00017.71
8.2.10.0040.00417.79
8.2.00.0080.00017.62
8.1.270.0030.00523.99
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0040.00421.18
8.1.230.0080.00417.70
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0000.01017.23
8.1.190.0000.00917.53
8.1.180.0070.00018.10
8.1.170.0000.00918.38
8.1.160.0080.00018.85
8.1.150.0050.00318.48
8.1.140.0000.00717.28
8.1.130.0000.00717.81
8.1.120.0030.00317.41
8.1.110.0040.00417.33
8.1.100.0030.00517.37
8.1.90.0000.00717.30
8.1.80.0030.00317.28
8.1.70.0070.00017.38
8.1.60.0060.00317.57
8.1.50.0000.00717.38
8.1.40.0040.00417.38
8.1.30.0000.00817.56
8.1.20.0080.00017.59
8.1.10.0030.00617.50
8.1.00.0090.00017.42
8.0.300.0000.00718.77
8.0.290.0000.00717.15
8.0.280.0030.00318.44
8.0.270.0070.00017.12
8.0.260.0070.00016.75
8.0.250.0000.00716.96
8.0.240.0000.00916.98
8.0.230.0030.00317.03
8.0.220.0030.00316.96
8.0.210.0030.00316.84
8.0.200.0060.00017.02
8.0.190.0040.00416.87
8.0.180.0050.00317.00
8.0.170.0080.00016.89
8.0.160.0070.00016.91
8.0.150.0040.00416.86
8.0.140.0060.00316.75
8.0.130.0000.00613.46
8.0.120.0050.00316.84
8.0.110.0000.00716.95
8.0.100.0070.00016.81
8.0.90.0070.00016.91
8.0.80.0070.01416.99
8.0.70.0000.00716.83
8.0.60.0040.00416.77
8.0.50.0000.00717.05
8.0.30.0050.01517.06
8.0.20.0090.00817.40
8.0.10.0030.00316.82
8.0.00.0110.00916.80
7.4.330.0000.00516.79
7.4.320.0020.00516.58
7.4.300.0000.00616.64
7.4.290.0030.00316.55
7.4.280.0070.00416.53
7.4.270.0000.00716.63
7.4.260.0000.00513.28
7.4.250.0030.00516.39
7.4.240.0030.00516.48
7.4.230.0000.00716.57
7.4.220.0060.00916.54
7.4.210.0070.01016.58
7.4.200.0000.00716.57
7.4.190.0070.00016.59
7.4.160.0030.01316.50
7.4.150.0120.00617.40
7.4.140.0120.00517.86
7.4.130.0100.00816.48
7.4.120.0120.00816.46
7.4.110.0100.00716.51
7.4.100.0000.01616.49
7.4.90.0110.00816.59
7.4.80.0090.00919.39
7.4.70.0120.00316.59
7.4.60.0120.00616.48
7.4.50.0060.00316.67
7.4.40.0070.01022.77
7.4.30.0080.00816.72
7.4.00.0110.00714.70
7.3.330.0030.00313.08
7.3.320.0050.00013.11
7.3.310.0000.00716.39
7.3.300.0040.00416.33
7.3.290.0110.00816.35
7.3.280.0110.00516.34
7.3.270.0120.00417.40
7.3.260.0170.00916.36
7.3.250.0100.00816.45
7.3.240.0130.00616.35
7.3.230.0030.01616.43
7.3.210.0100.00716.43
7.3.200.0070.01319.39
7.3.190.0070.01316.37
7.3.180.0120.00416.52
7.3.170.0060.01016.59
7.3.160.0100.01016.39
7.3.120.0120.00314.71
7.3.110.0060.00915.02
7.3.100.0100.00315.02
7.3.90.0080.00814.82
7.3.80.0110.00414.82
7.3.70.0030.00714.82
7.3.60.0000.01614.79
7.3.50.0040.00714.73
7.3.40.0030.01314.83
7.3.30.0030.00614.79
7.3.20.0070.00716.68
7.3.10.0070.00416.60
7.3.00.0050.01016.64
7.2.330.0110.00616.68
7.2.320.0060.01216.47
7.2.310.0100.01316.45
7.2.300.0090.00916.52
7.2.290.0100.01416.53
7.2.240.0040.01414.86
7.2.230.0040.00715.16
7.2.220.0060.00315.23
7.2.210.0000.01814.66
7.2.200.0030.01314.98
7.2.190.0090.00615.03
7.2.180.0090.00614.95
7.2.170.0040.01215.04
7.2.160.0150.00015.22
7.2.150.0000.01416.71
7.2.140.0140.00316.64
7.2.130.0060.00716.79
7.2.120.0050.00916.91
7.2.110.0070.00616.85
7.2.100.0050.00716.78
7.2.90.0030.01316.81
7.2.80.0050.01116.68
7.2.70.0080.00616.85
7.2.60.0080.00716.92
7.2.50.0060.00716.86
7.2.40.0070.00716.86
7.2.30.0080.00816.99
7.2.20.0050.00816.93
7.2.10.0090.00416.73
7.2.00.0060.00817.46
7.1.330.0030.00915.71
7.1.320.0060.00715.83
7.1.310.0070.00715.89
7.1.300.0130.00315.75
7.1.290.0070.01015.76
7.1.280.0070.00715.63
7.1.270.0070.01015.65
7.1.260.0110.00415.96
7.1.250.0040.00915.78
7.1.200.0030.00915.50
7.1.100.0080.00817.87
7.1.70.0000.00917.25
7.1.60.0060.01219.17
7.1.50.0070.01717.05
7.1.00.0030.04722.46
7.0.200.0000.00916.89
7.0.140.0100.06321.91
7.0.100.0130.04019.98
7.0.90.0070.03719.82
7.0.80.0030.04319.82
7.0.70.0030.05319.90
7.0.60.0130.03019.91
7.0.50.0330.03320.30
7.0.40.0070.04020.11
7.0.30.0100.03720.11
7.0.20.0100.03720.14
7.0.10.0030.04320.02
7.0.00.0030.05020.12
5.6.280.0000.07721.07
5.6.250.0030.04320.44
5.6.240.0030.07020.63
5.6.230.0070.03720.60
5.6.220.0070.03720.52
5.6.210.0070.03720.50
5.6.200.0130.05320.99
5.6.190.0070.04321.01
5.6.180.0000.04321.08
5.6.170.0000.05021.03
5.6.160.0070.04021.01
5.6.150.0100.04021.13
5.6.140.0000.04321.02
5.6.130.0070.04021.12
5.6.120.0070.05321.07
5.6.110.0100.03721.04
5.6.100.0070.03720.88
5.6.90.0000.05021.02
5.6.80.0030.04320.51
5.6.70.0100.03320.34
5.6.60.0000.04320.38
5.6.50.0070.03720.40
5.6.40.0030.04020.37
5.6.30.0170.07020.46
5.6.20.0030.08020.30
5.6.10.0100.03320.35
5.6.00.0070.03720.50
5.5.380.0070.04020.39
5.5.370.0100.04720.44
5.5.360.0000.04720.43
5.5.350.0070.03720.39
5.5.340.0070.04020.79
5.5.330.0030.04720.86
5.5.320.0070.04020.86
5.5.310.0030.04020.75
5.5.300.0100.03320.77
5.5.290.0100.03320.92
5.5.280.0130.03720.76
5.5.270.0030.05020.85
5.5.260.0030.04320.78
5.5.250.0070.04020.44
5.5.240.0000.04720.27
5.5.230.0070.07720.25
5.5.220.0000.08320.16
5.5.210.0130.06720.25
5.5.200.0070.03720.11
5.5.190.0030.05320.07
5.5.180.0070.08320.11
5.5.160.0070.07720.13
5.5.150.0100.07720.27
5.5.140.0030.05020.20
5.5.130.0070.04020.20
5.5.120.0200.07020.12
5.5.110.0130.08020.20
5.5.100.0170.07020.09
5.5.90.0100.07320.05
5.5.80.0100.07720.11
5.5.70.0070.07320.08
5.5.60.0170.07020.09
5.5.50.0130.07320.13
5.5.40.0070.06020.12
5.5.30.0170.07020.12
5.5.20.0100.04320.05
5.5.10.0070.08020.11
5.5.00.0100.06320.09
5.4.450.0100.03319.44
5.4.440.0070.03719.35
5.4.430.0030.04319.36
5.4.420.0030.04019.41
5.4.410.0030.04319.10
5.4.400.0030.03718.88
5.4.390.0030.04718.90
5.4.380.0030.07319.11
5.4.370.0100.06719.15
5.4.360.0030.06318.99
5.4.350.0030.08018.94
5.4.340.0130.07018.81
5.4.320.0000.08319.03
5.4.310.0130.03318.79
5.4.300.0000.04018.98
5.4.290.0100.03318.96
5.4.280.0070.06019.07
5.4.270.0030.08019.23
5.4.260.0030.04719.24
5.4.250.0100.05018.87
5.4.240.0070.07318.78
5.4.230.0070.05319.09
5.4.220.0000.07718.87
5.4.210.0000.08319.09
5.4.200.0100.07319.02
5.4.190.0030.08718.94
5.4.180.0130.07719.11
5.4.170.0100.07718.96
5.4.160.0070.06018.76
5.4.150.0130.06719.00
5.4.140.0070.04016.34
5.4.130.0130.07016.32
5.4.120.0170.06716.28
5.4.110.0000.04016.33
5.4.100.0270.04316.34
5.4.90.0070.07016.45
5.4.80.0100.03316.20
5.4.70.0030.08016.25
5.4.60.0100.07016.21
5.4.50.0030.06716.29
5.4.40.0000.04016.46
5.4.30.0100.07016.31
5.4.20.0270.05316.30
5.4.10.0070.07016.40
5.4.00.0170.03315.77
5.3.290.0100.06714.66
5.3.280.0170.06314.59
5.3.270.0070.08014.58
5.3.260.0070.03714.61
5.3.250.0070.04014.54
5.3.240.0200.06014.46
5.3.230.0030.04314.53
5.3.220.0130.07014.42
5.3.210.0030.08014.43
5.3.200.0030.07014.57
5.3.190.0070.07714.55
5.3.180.0030.04314.54
5.3.170.0070.08014.52
5.3.160.0100.06014.54
5.3.150.0100.07714.42
5.3.140.0030.04014.45
5.3.130.0170.07014.50
5.3.120.0070.07314.52
5.3.110.0070.07014.53
5.3.100.0170.07313.85
5.3.90.0100.06713.99
5.3.80.0030.05314.02
5.3.70.0000.06313.87
5.3.60.0070.07713.95
5.3.50.0100.06713.80
5.3.40.0070.08313.94
5.3.30.0070.05013.82
5.3.20.0130.07713.68
5.3.10.0130.06313.43
5.3.00.0170.07013.59
5.2.170.0100.05712.82
5.2.160.0000.07012.82
5.2.150.0030.04312.82
5.2.140.0100.05712.82
5.2.130.0230.04712.82
5.2.120.0030.03312.82
5.2.110.0030.06312.82
5.2.100.0200.05012.82
5.2.90.0070.06312.82
5.2.80.0070.06312.82
5.2.70.0070.05012.82
5.2.60.0070.06012.82
5.2.50.0070.06012.82
5.2.40.0130.05312.82
5.2.30.0100.05712.82
5.2.20.0000.06012.82
5.2.10.0070.04012.82
5.2.00.0100.05312.82
5.1.60.0130.04012.82
5.1.50.0070.03712.82
5.1.40.0070.03312.82
5.1.30.0030.05312.82
5.1.20.0030.04012.82
5.1.10.0070.05312.82
5.1.00.0030.06012.82
5.0.50.0000.04012.82
5.0.40.0000.04312.82
5.0.30.0000.06012.82
5.0.20.0030.04312.82
5.0.10.0000.03012.82
5.0.00.0030.05712.82
4.4.90.0030.03312.82
4.4.80.0030.01712.82
4.4.70.0030.03312.82
4.4.60.0030.02712.82
4.4.50.0000.02712.82
4.4.40.0070.02712.82
4.4.30.0030.03712.82
4.4.20.0100.03012.82
4.4.10.0070.03312.82
4.4.00.0030.05712.82
4.3.110.0030.03312.82
4.3.100.0030.03312.82
4.3.90.0030.02312.82
4.3.80.0000.03712.82
4.3.70.0030.03312.82
4.3.60.0030.02712.82
4.3.50.0070.03312.82
4.3.40.0030.03012.82
4.3.30.0000.03712.82
4.3.20.0000.03712.82
4.3.10.0030.03012.82
4.3.00.0030.03312.82

preferences:
37.61 ms | 400 KiB | 5 Q