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)
8.3.60.0100.01016.63
8.3.50.0030.01322.20
8.3.40.0100.00318.79
8.3.30.0100.00718.96
8.3.20.0040.00420.29
8.3.10.0000.00823.73
8.3.00.0040.00419.63
8.2.180.0120.00318.56
8.2.170.0040.01122.96
8.2.160.0130.00020.52
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0040.01626.16
8.2.120.0080.00022.16
8.2.110.0070.00322.25
8.2.100.0050.00518.03
8.2.90.0020.00519.05
8.2.80.0000.00817.97
8.2.70.0050.00517.75
8.2.60.0030.00518.04
8.2.50.0050.00518.07
8.2.40.0030.00618.22
8.2.30.0030.00618.00
8.2.20.0000.00717.69
8.2.10.0000.00717.95
8.2.00.0040.00817.69
8.1.280.0110.00425.92
8.1.270.0030.00623.91
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0030.00624.02
8.1.230.0110.00019.16
8.1.220.0050.00317.74
8.1.210.0080.00018.77
8.1.200.0000.00917.48
8.1.190.0030.00517.52
8.1.180.0000.00918.10
8.1.170.0000.00818.59
8.1.160.0040.00421.97
8.1.150.0070.00018.63
8.1.140.0000.00717.44
8.1.130.0030.00317.90
8.1.120.0070.00017.55
8.1.110.0040.00317.53
8.1.100.0050.00217.57
8.1.90.0080.00017.51
8.1.80.0030.00317.50
8.1.70.0000.00717.48
8.1.60.0040.00417.71
8.1.50.0090.00017.55
8.1.40.0040.00417.57
8.1.30.0040.00417.59
8.1.20.0040.00417.73
8.1.10.0040.00417.59
8.1.00.0000.00717.44
8.0.300.0080.00018.77
8.0.290.0070.00017.16
8.0.280.0030.00318.47
8.0.270.0000.00717.13
8.0.260.0040.00417.20
8.0.250.0000.00717.08
8.0.240.0030.00317.02
8.0.230.0030.00317.13
8.0.220.0000.00717.03
8.0.210.0070.00016.96
8.0.200.0000.00717.09
8.0.190.0070.00016.97
8.0.180.0050.00317.06
8.0.170.0030.00517.02
8.0.160.0040.00416.97
8.0.150.0000.00716.86
8.0.140.0040.00416.88
8.0.130.0030.00313.38
8.0.120.0000.00817.04
8.0.110.0050.00216.93
8.0.100.0000.00816.97
8.0.90.0000.00716.94
8.0.80.0130.00316.99
8.0.70.0000.00717.06
8.0.60.0080.00017.05
8.0.50.0050.00317.09
8.0.30.0110.00917.27
8.0.20.0110.01117.40
8.0.10.0040.00417.12
8.0.00.0110.00717.00
7.4.330.0000.00515.04
7.4.320.0030.00316.67
7.4.300.0040.00416.74
7.4.290.0070.00016.64
7.4.280.0000.00716.64
7.4.270.0000.00716.63
7.4.260.0000.00916.79
7.4.250.0030.00516.71
7.4.240.0040.00416.63
7.4.230.0000.00716.77
7.4.220.0170.00416.76
7.4.210.0120.00516.79
7.4.200.0040.00416.81
7.4.190.0040.00416.77
7.4.160.0040.01216.70
7.4.150.0190.00717.40
7.4.140.0080.00817.86
7.4.130.0060.01116.62
7.4.120.0090.00916.62
7.4.110.0090.00916.66
7.4.100.0040.01616.50
7.4.90.0100.00816.68
7.4.80.0070.01119.39
7.4.70.0050.01116.68
7.4.60.0130.00316.48
7.4.50.0000.00816.35
7.4.40.0070.01022.77
7.4.30.0140.00316.48
7.4.00.0070.00715.14
7.3.330.0000.00613.25
7.3.320.0000.00613.18
7.3.310.0030.00316.31
7.3.300.0000.00716.38
7.3.290.0100.01016.29
7.3.280.0080.00916.38
7.3.270.0070.01017.40
7.3.260.0050.01116.60
7.3.250.0080.01116.64
7.3.240.0160.00316.74
7.3.230.0120.00616.39
7.3.210.0100.01316.53
7.3.200.0080.01419.39
7.3.190.0150.00716.41
7.3.180.0030.01416.36
7.3.170.0150.00016.29
7.3.160.0100.00616.54
7.3.120.0040.01114.95
7.3.10.0070.00716.51
7.3.00.0040.00816.76
7.2.330.0090.00916.75
7.2.320.0120.00416.79
7.2.310.0130.00316.63
7.2.300.0060.01416.80
7.2.290.0090.00916.48
7.2.130.0030.01016.79
7.2.120.0070.00716.71
7.2.110.0150.00016.77
7.2.100.0040.01116.99
7.2.90.0090.00316.91
7.2.80.0070.00417.19
7.2.70.0000.01417.27
7.2.60.0070.00316.80
7.2.50.0120.00616.97
7.2.40.0120.00317.01
7.2.30.0120.00317.09
7.2.20.0090.00917.09
7.2.10.0070.00717.13
7.2.00.0060.00916.99
7.1.250.0030.00716.08
7.1.240.0050.00515.75
7.1.230.0050.00315.90
7.1.220.0080.00615.93
7.1.210.0100.00316.03
7.1.200.0060.00916.03
7.1.190.0110.00015.90
7.1.180.0130.00015.74
7.1.170.0000.01515.91
7.1.160.0000.01115.93
7.1.150.0090.00615.92
7.1.140.0040.01115.95
7.1.130.0000.01115.91
7.1.120.0030.00915.82
7.1.110.0060.00615.95
7.1.100.0040.00916.97
7.1.90.0000.01415.71
7.1.80.0050.00315.88
7.1.70.0000.01416.42
7.1.60.0080.01317.54
7.1.50.0110.00616.56
7.1.40.0040.00415.96
7.1.30.0030.01015.89
7.1.20.0070.01015.88
7.1.10.0090.00616.07
7.1.00.0040.04419.08
7.0.330.0030.00915.62
7.0.320.0070.00715.25
7.0.310.0090.00315.49
7.0.300.0030.01215.50
7.0.290.0060.00615.46
7.0.280.0000.01615.36
7.0.270.0060.00615.16
7.0.260.0080.00815.47
7.0.250.0080.00415.52
7.0.240.0000.01015.79
7.0.230.0080.00415.68
7.0.220.0060.00315.52
7.0.210.0060.00315.64
7.0.200.0040.00716.05
7.0.190.0060.00615.37
7.0.180.0030.00615.57
7.0.170.0040.00715.37
7.0.160.0000.01215.38
7.0.150.0060.00915.53
7.0.140.0030.03918.78
7.0.130.0040.01215.63
7.0.120.0070.00715.80
7.0.110.0030.00915.74
7.0.100.0000.01215.20
7.0.90.0000.01015.50
7.0.80.0040.00515.65
7.0.70.0070.00315.40
7.0.60.0050.04417.68
7.0.50.0070.02616.76
7.0.40.0100.03216.78
7.0.30.0150.02717.00
7.0.20.0130.04316.88
7.0.10.0150.03817.00
7.0.00.0050.02516.82
5.6.380.0030.01013.80
5.6.370.0040.00714.01
5.6.360.0030.01014.33
5.6.350.0040.00714.37
5.6.340.0080.00814.59
5.6.330.0040.01114.07
5.6.320.0040.01114.20
5.6.310.0000.01414.02
5.6.300.0030.00914.52
5.6.290.0140.00014.41
5.6.280.0060.03817.83
5.6.270.0090.00614.12
5.6.260.0030.01014.51
5.6.250.0000.01114.46
5.6.240.0000.01114.34
5.6.230.0070.00714.68
5.6.220.0030.00514.23
5.6.210.0080.03817.43
5.6.200.0080.04316.23
5.6.190.0040.02517.37
5.6.180.0240.02517.32
5.6.170.0120.02417.38
5.6.160.0040.03417.50
5.6.150.0030.02316.20
5.6.140.0020.02816.11
5.6.130.0060.02616.29
5.6.120.0090.03817.61
5.6.110.0020.03217.83
5.6.100.0050.02817.72
5.6.90.0070.04317.76
5.6.80.0060.04517.34
5.6.70.2300.02317.48
5.6.60.0000.01014.39
5.6.50.0040.00914.26
5.6.40.0060.00914.24
5.6.30.0060.01014.42
5.6.20.0090.00314.02
5.6.10.0030.00914.50
5.6.00.0000.01114.18
5.5.380.0090.00010.72
5.5.370.0030.00311.05
5.5.360.0060.00611.25
5.5.350.0070.04515.82
5.5.340.0090.04114.49
5.5.330.0030.04215.57
5.5.320.0150.02915.59
5.5.310.0160.03615.75
5.5.300.0050.02414.59
5.5.290.0090.04314.51
5.5.280.0030.02115.95
5.5.270.0120.04016.09
5.5.260.0020.04015.98
5.5.250.0040.02915.88
5.5.240.0140.03815.66
5.5.230.0000.00811.08
5.5.220.0000.00810.81
5.5.210.0080.00311.14
5.5.200.0030.00911.11
5.5.190.0080.00011.16
5.5.180.0000.00710.98
5.5.170.0000.00711.19
5.5.160.0060.00310.95
5.5.150.0030.00610.74
5.5.140.0000.00911.03
5.5.130.0030.00710.93
5.5.120.0000.01010.89
5.5.110.0000.00710.98
5.5.100.0060.00611.22
5.5.90.0090.00311.18
5.5.80.0090.00311.12
5.5.70.0060.00610.97
5.5.60.0040.00711.15
5.5.50.0050.00211.09
5.5.40.0060.00611.04
5.5.30.0120.00010.63
5.5.20.0000.00811.17
5.5.10.0080.00310.95
5.5.00.0000.01010.65
5.4.450.0070.03215.40
5.4.440.0470.02515.19
5.4.430.0110.03515.21
5.4.420.0320.03115.36
5.4.410.0090.02514.90
5.4.400.0380.02514.90
5.4.390.0390.02914.89
5.4.380.0230.03214.76
5.4.370.0180.03214.97
5.4.360.0150.02514.92
5.4.350.0080.03014.84
5.4.340.0150.02714.67
5.4.330.0000.00611.11
5.4.320.0020.02311.58
5.4.310.0030.02311.63
5.4.300.0030.02311.64
5.4.290.0050.02511.68
5.4.280.0040.01911.61
5.4.270.0040.02111.61
5.4.260.0050.02411.60
5.4.250.0060.02211.68
5.4.240.0050.02411.69
5.4.230.0050.01911.59
5.4.220.0040.02311.61
5.4.210.0070.01911.72
5.4.200.0040.02311.78
5.4.190.0040.02711.65
5.4.180.0020.02511.71
5.4.170.0090.02611.64
5.4.160.0090.02611.52
5.4.150.0080.02811.69
5.4.140.0100.02311.39
5.4.130.0060.02711.52
5.4.120.0060.02511.41
5.4.110.0090.02311.37
5.4.100.0080.02611.44
5.4.90.0100.02411.32
5.4.80.0100.02511.32
5.4.70.0120.02111.54
5.4.60.0090.02311.45
5.4.50.0120.03711.50
5.4.40.0090.02611.35
5.4.30.0090.02411.39
5.4.20.0070.02711.50
5.4.10.0080.02711.39
5.4.00.0210.04311.25
5.3.290.0080.02811.68
5.3.280.0050.02111.48
5.3.270.0140.02311.60
5.3.260.0110.02311.63
5.3.250.0100.02611.65
5.3.240.0120.02111.59
5.3.230.0100.02711.60
5.3.220.0090.02411.48
5.3.210.0140.02411.47
5.3.200.0100.02611.47
5.3.190.0150.03511.51
5.3.180.0080.02411.59
5.3.170.0120.02311.62
5.3.160.0170.03411.49
5.3.150.0130.02111.57
5.3.140.0140.02111.59
5.3.130.0080.02811.53
5.3.120.0120.02411.57
5.3.110.0120.04011.61
5.3.100.0090.02511.30
5.3.90.0120.02211.23
5.3.80.0110.02411.18
5.3.70.0070.02811.18
5.3.60.0120.02411.23
5.3.50.0080.02511.14
5.3.40.0090.02511.13
5.3.30.0160.03411.10
5.3.20.0100.02311.09
5.3.10.0090.02410.97
5.3.00.0110.02110.96
5.2.170.0100.0339.72
5.2.160.0050.0229.71
5.2.150.0080.0209.71
5.2.140.0070.0199.71
5.2.130.0080.0199.70
5.2.120.0050.0229.69
5.2.110.0140.0319.69
5.2.100.0100.0189.70
5.2.90.0070.0219.69
5.2.80.0100.0189.69
5.2.70.0100.0219.69
5.2.60.0080.0209.67
5.2.50.0110.0329.65
5.2.40.0070.0229.64
5.2.30.0090.0209.63
5.2.20.0090.0199.63
5.2.10.0140.0449.59
5.2.00.0060.0219.52
5.1.60.0100.0149.16
5.1.50.0050.0189.16
5.1.40.0050.0209.15
5.1.30.0070.0189.32
5.1.20.0090.0149.34
5.1.10.0050.0209.20
5.1.00.0060.0179.20
5.0.50.0070.0138.44
5.0.40.0100.0258.37
5.0.30.0070.0198.27
5.0.20.0090.0128.26
5.0.10.0050.0168.25
5.0.00.0080.0168.24
4.4.90.0060.0127.52
4.4.80.0070.0107.50
4.4.70.0060.0097.50
4.4.60.0050.0157.51
4.4.50.0160.0297.51
4.4.40.0050.0177.48
4.4.30.0070.0117.51
4.4.20.0110.0217.55
4.4.10.0040.0117.55
4.4.00.0040.0167.51
4.3.110.0060.0107.46
4.3.100.0040.0127.46
4.3.90.0040.0117.44
4.3.80.0040.0167.42
4.3.70.0100.0187.44
4.3.60.0070.0097.44
4.3.50.0040.0107.44
4.3.40.0070.0147.39
4.3.30.0030.0116.78
4.3.20.0040.0096.77
4.3.10.0040.0116.75
4.3.00.0010.0139.02

preferences:
34.77 ms | 401 KiB | 5 Q