3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = <<<EOD # a this is what should be returned # \a EOD; preg_match("/#{1}\s{1}a{1}\n{1}(.*)\n#{1}\s{1}\\a{1}/is", $str, $matches); /* Array ( ) */ print_r($matches);

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)
8.3.60.0040.01118.56
8.3.50.0160.00322.12
8.3.40.0100.00318.79
8.3.30.0070.01319.04
8.3.20.0080.00020.35
8.3.10.0040.00423.48
8.3.00.0030.00620.71
8.2.180.0000.01616.75
8.2.170.0120.00322.96
8.2.160.0040.01120.52
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0080.00019.48
8.2.110.0090.00020.47
8.2.100.0110.00017.71
8.2.90.0000.00818.03
8.2.80.0040.00420.59
8.2.70.0080.00017.80
8.2.60.0090.00017.93
8.2.50.0130.00318.10
8.2.40.0050.00320.59
8.2.30.0040.00418.23
8.2.20.0000.00717.77
8.2.10.0040.00418.09
8.2.00.0030.00617.64
8.1.280.0090.00925.92
8.1.270.0040.00422.18
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0120.00022.00
8.1.230.0000.01220.81
8.1.220.0040.00417.74
8.1.210.0030.00718.77
8.1.200.0080.00317.22
8.1.190.0050.00317.50
8.1.180.0050.00318.10
8.1.170.0080.00018.73
8.1.160.0020.00522.21
8.1.150.0040.00418.59
8.1.140.0040.00417.45
8.1.130.0000.00719.55
8.1.120.0000.00717.54
8.1.110.0030.00617.57
8.1.100.0070.00017.45
8.1.90.0040.00417.36
8.1.80.0070.00017.47
8.1.70.0030.00317.48
8.1.60.0070.00417.56
8.1.50.0040.00417.57
8.1.40.0000.01117.61
8.1.30.0090.00017.63
8.1.20.0080.00017.63
8.1.10.0040.00417.69
8.1.00.0050.00217.59
8.0.300.0050.00220.04
8.0.290.0000.00716.88
8.0.280.0030.00318.44
8.0.270.0040.00417.09
8.0.260.0030.00317.21
8.0.250.0050.00217.05
8.0.240.0000.00817.16
8.0.230.0030.00317.03
8.0.220.0030.00317.05
8.0.210.0000.00816.91
8.0.200.0070.00017.08
8.0.190.0040.00417.10
8.0.180.0000.00716.92
8.0.170.0030.00517.13
8.0.160.0040.00417.06
8.0.150.0070.00016.93
8.0.140.0030.00517.02
8.0.130.0080.00013.55
8.0.120.0000.00816.86
8.0.110.0030.00516.98
8.0.100.0040.00417.02
8.0.90.0040.00417.00
8.0.80.0060.00917.01
8.0.70.0040.00416.91
8.0.60.0000.00717.07
8.0.50.0000.00816.97
8.0.30.0120.00617.30
8.0.20.0070.01217.40
8.0.10.0040.00417.09
8.0.00.0110.00716.93
7.4.330.0000.00515.11
7.4.320.0080.00016.69
7.4.300.0000.00616.65
7.4.290.0030.00316.79
7.4.280.0000.00916.75
7.4.270.0000.00816.77
7.4.260.0030.00316.77
7.4.250.0030.00516.65
7.4.240.0050.00216.76
7.4.230.0040.00316.83
7.4.220.0120.00916.68
7.4.210.0030.01216.85
7.4.200.0000.00816.83
7.4.160.0110.00516.55
7.4.150.0120.00617.40
7.4.140.0060.01117.86
7.4.130.0120.00516.50
7.4.120.0100.00616.62
7.4.110.0100.00716.65
7.4.100.0030.01416.48
7.4.90.0060.01016.73
7.4.80.0070.01719.39
7.4.70.0130.00416.60
7.4.60.0100.00716.66
7.4.50.0040.00016.53
7.4.40.0130.00316.74
7.4.30.0130.00316.61
7.4.00.0120.00314.94
7.3.330.0030.00513.21
7.3.320.0000.00713.23
7.3.310.0000.00716.55
7.3.300.0000.00716.32
7.3.290.0030.01116.39
7.3.280.0060.01116.35
7.3.270.0130.00417.40
7.3.260.0000.01916.40
7.3.250.0110.01416.51
7.3.240.0030.01416.29
7.3.230.0090.00916.39
7.3.210.0180.00016.51
7.3.200.0100.00719.39
7.3.190.0080.01116.31
7.3.180.0090.00616.31
7.3.170.0030.01316.43
7.3.160.0090.00916.23
7.3.120.0070.01014.84
7.2.330.0100.01316.73
7.2.320.0080.01216.56
7.2.310.0120.00916.70
7.2.300.0080.00816.35
7.2.290.0080.01316.54
7.2.00.0190.00618.65
7.1.100.0040.00818.31
7.1.70.0040.01117.26
7.1.60.0100.01419.70
7.1.50.0150.00316.80
7.1.00.0070.07322.45
7.0.200.0030.00616.52
7.0.140.0170.06022.07
7.0.100.0130.07719.93
7.0.90.0030.05319.92
7.0.80.0200.06719.88
7.0.70.0070.04719.85
7.0.60.0000.07319.98
7.0.50.0030.08720.27
7.0.40.0230.07020.13
7.0.30.0100.07319.95
7.0.20.0100.09020.18
7.0.10.0130.04320.16
7.0.00.0000.07020.18
5.6.280.0030.07321.12
5.6.250.0100.08020.75
5.6.240.0070.07320.69
5.6.230.0030.05720.67
5.6.220.0000.08020.48
5.6.210.0030.08320.74
5.6.200.0100.07321.05
5.6.190.0070.07320.96
5.6.180.0100.08321.04
5.6.170.0070.08320.95
5.6.160.0130.06021.00
5.6.150.0030.05021.04
5.6.140.0100.04020.93
5.6.130.0070.07721.07
5.6.120.0030.09720.94
5.6.110.0030.04320.99
5.6.100.0100.07321.01
5.6.90.0130.07721.05
5.6.80.0070.07720.44
5.6.70.0100.08320.54
5.6.60.0100.07720.38
5.6.50.0000.06020.39
5.6.40.0030.05720.39
5.6.30.0130.05320.49
5.6.20.0000.06320.31
5.6.10.0030.08320.36
5.6.00.0000.07320.34
5.5.380.0200.06720.39
5.5.370.0100.08320.35
5.5.360.0230.07320.39
5.5.350.0100.08020.39
5.5.340.0100.08320.82
5.5.330.0170.07320.86
5.5.320.0070.05720.76
5.5.310.0100.08020.88
5.5.300.0100.08020.92
5.5.290.0130.04320.90
5.5.280.0000.04720.83
5.5.270.0000.04720.77
5.5.260.0000.04720.84
5.5.250.0030.04720.57
5.5.240.0170.06020.30
5.5.230.0130.07720.27
5.5.220.0030.07720.14
5.5.210.0100.04320.16
5.5.200.0130.06020.22
5.5.190.0200.06020.26
5.5.180.0030.07720.14
5.5.160.0170.03320.18
5.5.150.0100.04020.12
5.5.140.0100.07320.23
5.5.130.0070.08020.11
5.5.120.0070.08320.24
5.5.110.0130.07320.23
5.5.100.0030.05720.07
5.5.90.0170.06720.20
5.5.80.0070.06719.93
5.5.70.0130.04720.03
5.5.60.0170.06720.03
5.5.50.0170.07020.11
5.5.40.0070.08020.11
5.5.30.0030.08320.04
5.5.20.0130.07320.11
5.5.10.0070.08019.93
5.5.00.0070.03720.11
5.4.450.0100.08019.36
5.4.440.0170.06019.37
5.4.430.0070.03719.31
5.4.420.0130.06019.39
5.4.410.0100.05719.16
5.4.400.0070.08019.03
5.4.390.0070.05019.05
5.4.380.0030.05019.11
5.4.370.0070.06319.10
5.4.360.0030.07718.94
5.4.350.0100.07018.98
5.4.340.0100.06719.23
5.4.320.0100.07318.96
5.4.310.0070.07319.25
5.4.300.0030.08019.00
5.4.290.0100.07319.14
5.4.280.0100.07318.99
5.4.270.0100.06319.04
5.4.260.0030.05719.05
5.4.250.0070.07319.11
5.4.240.0100.07018.97
5.4.230.0130.06018.78
5.4.220.0070.05718.97
5.4.210.0030.07718.97
5.4.200.0130.06718.80
5.4.190.0070.08019.06
5.4.180.0070.04319.09
5.4.170.0070.04019.02
5.4.160.0130.04719.00
5.4.150.0030.05319.06
5.4.140.0130.06716.13
5.4.130.0030.07716.27
5.4.120.0000.07016.34
5.4.110.0100.03016.36
5.4.100.0070.03716.42
5.4.90.0070.04016.26
5.4.80.0030.07716.41
5.4.70.0070.06716.29
5.4.60.0070.04316.23
5.4.50.0070.05316.42
5.4.40.0100.07316.26
5.4.30.0130.06716.19
5.4.20.0030.04016.32
5.4.10.0100.05316.41
5.4.00.0100.03715.80
5.3.290.0070.08314.68
5.3.280.0070.07014.57
5.3.270.0070.04314.59
5.3.260.0070.07714.55
5.3.250.0070.07014.51
5.3.240.0070.05714.45
5.3.230.0030.04714.58
5.3.220.0070.07714.57
5.3.210.0070.04314.52
5.3.200.0070.04314.55
5.3.190.0130.06714.52
5.3.180.0000.07014.54
5.3.170.0130.07014.50
5.3.160.0030.07314.55
5.3.150.0000.07714.46
5.3.140.0000.08014.49
5.3.130.0000.05014.38
5.3.120.0130.07014.50
5.3.110.0070.04014.48
5.3.100.0070.04013.94
5.3.90.0030.06714.00
5.3.80.0030.03313.97
5.3.70.0070.06313.96
5.3.60.0030.04013.98
5.3.50.0030.07713.85
5.3.40.0170.03013.85
5.3.30.0030.06713.89
5.3.20.0100.05713.68
5.3.10.0030.05313.56
5.3.00.0030.06713.54
5.2.170.0070.06012.39
5.2.160.0100.05012.39
5.2.150.0030.05712.39
5.2.140.0030.06312.39
5.2.130.0070.06012.39
5.2.120.0030.05712.39
5.2.110.0070.03312.39
5.2.100.0100.05312.39
5.2.90.0100.02012.39
5.2.80.0070.06312.39
5.2.70.0070.06012.39
5.2.60.0030.03712.39
5.2.50.0030.05712.39
5.2.40.0030.06012.39
5.2.30.0070.05712.39
5.2.20.0030.06012.39
5.2.10.0070.02012.39
5.2.00.0070.04312.39
5.1.60.0070.04712.39
5.1.50.0030.03312.39
5.1.40.0000.04312.39
5.1.30.0070.05012.39
5.1.20.0070.04712.39
5.1.10.0070.02312.39
5.1.00.0000.06012.39
5.0.50.0030.04012.39
5.0.40.0030.04012.39
5.0.30.0070.04312.39
5.0.20.0030.03312.39
5.0.10.0000.04712.39
5.0.00.0030.07012.39
4.4.90.0030.02312.39
4.4.80.0000.02312.39
4.4.70.0000.03012.39
4.4.60.0100.03012.39
4.4.50.0000.01312.39
4.4.40.0030.05012.39
4.4.30.0000.01712.39
4.4.20.0000.01312.39
4.4.10.0000.03712.39
4.4.00.0000.04712.39
4.3.110.0030.03312.39
4.3.100.0000.03712.39
4.3.90.0070.02012.39
4.3.80.0030.05312.39
4.3.70.0030.03312.39
4.3.60.0000.02312.39
4.3.50.0000.02312.39
4.3.40.0000.02312.39
4.3.30.0030.01312.39
4.3.20.0000.01712.39
4.3.10.0030.01712.39
4.3.00.0000.01712.39

preferences:
48.9 ms | 401 KiB | 5 Q