3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "oAA34Ao#\\(\oo+--)o/"; preg_replace_callback( '/([\x00-\x1F\*\(\)\\\\])/', function ($matches) { print_r($matches); $x = "\\".join("", unpack("H2", $matches[1])); echo $x; return $x; }, $str ); $str = " oAA34Ao#\\(\oo+--)o/"; function matches($matches) { print_r($matches); $x = "\\".join("", unpack("H2", $matches[1])); echo $x; return $x; } mb_ereg_replace_callback( '([\x00-\x1F\*\(\)\\\\])', "matches", $str ); ?>

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)
8.3.60.0110.00718.56
8.3.50.0120.00721.21
8.3.40.0120.00318.90
8.3.30.0100.00720.38
8.3.20.0060.00320.52
8.3.10.0080.00022.27
8.3.00.0040.00422.43
8.2.180.0150.00618.79
8.2.170.0110.00422.96
8.2.160.0070.00720.41
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0050.00326.16
8.2.120.0080.00019.79
8.2.110.0040.00422.30
8.2.100.0000.01119.34
8.2.90.0000.00819.38
8.2.80.0000.00819.38
8.2.70.0030.00618.00
8.2.60.0000.00818.05
8.2.50.0040.00418.07
8.2.40.0030.00518.28
8.2.30.0080.00018.23
8.2.20.0000.00718.00
8.2.10.0000.00818.00
8.2.00.0050.00318.11
8.1.280.0190.00325.92
8.1.270.0040.00424.66
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0060.00323.86
8.1.230.0090.00319.29
8.1.220.0080.00017.79
8.1.210.0050.00318.77
8.1.200.0000.01117.61
8.1.190.0000.00817.53
8.1.180.0040.00418.10
8.1.170.0000.00818.69
8.1.160.0020.00522.29
8.1.150.0000.00718.81
8.1.140.0040.00417.78
8.1.130.0040.00417.97
8.1.120.0060.00317.83
8.1.110.0000.00717.72
8.1.100.0060.00317.65
8.1.90.0000.00717.77
8.1.80.0000.00717.65
8.1.70.0030.00317.70
8.1.60.0050.00517.88
8.1.50.0050.00317.71
8.1.40.0030.00517.84
8.1.30.0000.00818.00
8.1.20.0030.00517.97
8.1.10.0030.00517.91
8.1.00.0000.00817.79
8.0.300.0040.00418.77
8.0.290.0070.00017.29
8.0.280.0000.00718.60
8.0.270.0000.00717.38
8.0.260.0030.00317.14
8.0.250.0030.00317.28
8.0.240.0000.00817.29
8.0.230.0040.00417.21
8.0.220.0070.00017.23
8.0.210.0000.00717.07
8.0.200.0000.00617.10
8.0.190.0050.00217.26
8.0.180.0040.00417.26
8.0.170.0040.00417.14
8.0.160.0070.00017.21
8.0.150.0050.00317.18
8.0.140.0000.00817.18
8.0.130.0000.00613.54
8.0.120.0030.00617.20
8.0.110.0040.00417.21
8.0.100.0040.00416.95
8.0.90.0070.00017.01
8.0.80.0070.00817.14
8.0.70.0040.00417.19
8.0.60.0000.00717.00
8.0.50.0070.00017.13
8.0.30.0130.00617.24
8.0.20.0130.00617.49
8.0.10.0000.00817.25
8.0.00.0130.00517.03
7.4.330.0000.00515.00
7.4.320.0030.00316.86
7.4.300.0000.00717.00
7.4.290.0030.00316.99
7.4.280.0050.00316.94
7.4.270.0000.00716.91
7.4.260.0000.00717.01
7.4.250.0000.00716.81
7.4.240.0020.00516.97
7.4.230.0030.00316.96
7.4.220.0060.01317.10
7.4.210.0100.00516.92
7.4.200.0000.00717.01
7.4.190.0040.00417.18
7.4.160.0130.00516.98
7.4.150.0040.01517.40
7.4.140.0100.01117.86
7.4.130.0100.01016.85
7.4.120.0110.00916.85
7.4.110.0030.01316.83
7.4.100.0060.01216.95
7.4.90.0060.01216.76
7.4.80.0090.01119.39
7.4.70.0120.00816.95
7.4.60.0130.00316.72
7.4.50.0000.00516.75
7.4.40.0100.00722.77
7.4.30.0030.01317.07
7.4.00.0050.01215.53
7.3.330.0000.00613.42
7.3.320.0060.00013.50
7.3.310.0080.00016.54
7.3.300.0030.00316.53
7.3.290.0000.01316.61
7.3.280.0090.01016.61
7.3.270.0110.00817.40
7.3.260.0070.01016.83
7.3.250.0070.01516.76
7.3.240.0130.00916.80
7.3.230.0000.01616.84
7.3.210.0100.00716.83
7.3.200.0090.00919.39
7.3.190.0060.01316.67
7.3.180.0060.00916.77
7.3.170.0090.01216.53
7.3.160.0060.01016.65
7.3.120.0060.01115.13
7.3.110.0000.01915.25
7.3.100.0120.00415.27
7.3.90.0110.00415.10
7.3.80.0000.01015.21
7.3.70.0100.00014.82
7.3.60.0040.00815.05
7.3.50.0060.00315.17
7.3.40.0090.00615.07
7.3.30.0100.00315.11
7.3.20.0090.00916.66
7.3.10.0030.00917.11
7.3.00.0090.00016.92
7.2.330.0100.01016.76
7.2.320.0200.00316.81
7.2.310.0080.00816.79
7.2.300.0140.00316.73
7.2.290.0060.01016.70
7.2.250.0130.00315.37
7.2.240.0070.01415.14
7.2.230.0000.01415.18
7.2.220.0100.00315.30
7.2.210.0030.01415.28
7.2.200.0030.01015.21
7.2.190.0040.01215.26
7.2.180.0070.01014.98
7.2.170.0130.00715.16
7.2.60.0030.01017.10
7.2.00.0040.01419.79
7.1.330.0000.01516.13
7.1.320.0030.01016.02
7.1.310.0030.00915.86
7.1.300.0030.00915.90
7.1.290.0100.00315.99
7.1.280.0040.01115.97
7.1.270.0040.00816.12
7.1.260.0060.00916.05
7.1.200.0000.01215.84
7.1.100.0030.00718.35
7.1.70.0070.00417.37
7.1.60.0110.01119.21
7.1.50.0140.01017.00
7.1.00.0000.04722.37
7.0.200.0100.00715.12
7.0.140.0000.08021.95
7.0.60.0130.07319.91
7.0.50.0070.09017.86
7.0.40.0100.09020.26
7.0.30.0570.06720.28
7.0.20.0330.05320.17
7.0.10.0030.06020.10
7.0.00.0000.04720.22
5.6.280.0000.07721.13
5.6.210.0230.06720.62
5.6.200.0100.08018.18
5.6.190.0100.08020.47
5.6.180.0170.06320.61
5.6.170.0430.07320.59
5.6.160.0100.04720.50
5.6.150.0000.04318.19
5.6.140.0070.08018.15
5.6.130.0130.08018.18
5.6.120.0200.07020.90
5.6.110.0000.04321.14
5.6.100.0070.08020.90
5.6.90.0030.07720.96
5.6.80.0030.03720.40
5.5.350.0000.03720.45
5.5.340.0030.04317.96
5.5.330.0070.08720.35
5.5.320.0200.05320.24
5.5.310.0330.07720.37
5.5.300.0170.05017.96
5.5.290.0070.08317.99
5.5.280.0000.04320.86
5.5.270.0130.05020.77
5.5.260.0130.07320.85
5.5.250.0170.06720.47
5.5.240.2900.03320.12
5.4.450.0200.06719.32
5.4.440.0700.04719.56
5.4.430.0970.05319.16
5.4.420.0170.05019.57
5.4.410.0730.06019.48
5.4.400.0870.08019.26
5.4.390.0730.07318.98
5.4.380.0200.06018.73
5.4.370.0130.05718.73
5.4.360.0200.04318.70
5.4.350.0090.04312.02
5.4.340.0070.04712.02
5.4.320.0070.04512.51
5.4.310.0030.04512.51
5.4.300.0150.03812.51
5.4.290.0050.04612.50
5.4.280.0050.03712.40
5.4.270.0080.03712.40
5.4.260.0100.03812.40
5.4.250.0130.05018.70
5.4.240.0070.05318.95
5.4.230.0130.05018.76
5.4.220.0070.05718.68
5.4.210.0070.06718.59
5.4.200.0170.06319.04
5.4.190.0170.04718.67
5.4.180.0030.05718.84
5.4.170.0100.07318.70
5.4.160.0170.04318.66
5.4.150.0100.07718.70
5.4.140.0100.05016.53
5.4.130.0130.04316.58
5.4.120.0070.05316.42
5.4.110.0130.06316.41
5.4.100.0070.05016.57
5.4.90.0070.05016.50
5.4.80.0130.05316.38
5.4.70.0100.05016.37
5.4.60.0100.05316.41
5.4.50.0100.04716.41
5.4.40.0130.04316.37
5.4.30.0100.05016.56
5.4.20.0000.07716.39
5.4.10.0170.04716.48
5.4.00.0100.04715.91
5.3.290.0060.04812.80
5.3.280.0130.06014.69
5.3.270.0100.05014.78
5.3.260.0130.04714.79
5.3.250.0100.04714.62
5.3.240.0070.05014.77
5.3.230.0070.07714.58
5.3.220.0030.05314.48
5.3.210.0100.05714.56
5.3.200.0130.06714.48
5.3.190.0100.05014.64
5.3.180.0030.06714.79
5.3.170.0130.04714.56
5.3.160.0130.05714.70
5.3.150.0070.05014.40
5.3.140.0030.07314.47
5.3.130.0100.06714.55
5.3.120.0130.06314.64
5.3.110.0030.06014.64
5.3.100.0130.04714.25
5.3.90.0070.05014.10
5.3.80.0030.07314.24
5.3.70.0130.05014.11
5.3.60.0170.06313.91
5.3.50.0030.05713.79
5.3.40.0170.06314.04
5.3.30.0030.05013.89
5.3.20.0100.05313.77
5.3.10.0070.05013.74
5.3.00.0130.06013.72
5.2.170.0100.06011.10
5.2.160.0100.05311.12
5.2.150.0070.04311.16
5.2.140.0170.03011.14
5.2.130.0030.04311.20
5.2.120.0030.04311.00
5.2.110.0100.04011.11
5.2.100.0000.06711.11
5.2.90.0100.05011.05
5.2.80.0030.04711.00
5.2.70.0070.06011.23
5.2.60.0070.04010.94
5.2.50.0100.03710.95
5.2.40.0030.04011.01
5.2.30.0000.05710.81
5.2.20.0070.04010.88
5.2.10.0070.04010.80
5.2.00.0100.05310.55
5.1.60.0070.0509.76
5.1.50.0130.0279.85
5.1.40.0070.0509.87
5.1.30.0000.04010.41
5.1.20.0100.04010.42
5.1.10.0100.04310.21
5.1.00.0170.0339.84
5.0.50.0030.0338.78
5.0.40.0070.0308.34
5.0.30.0030.0408.41
5.0.20.0100.0208.18
5.0.10.0000.0308.00
5.0.00.0100.0408.30
4.4.90.0070.0207.64
4.4.80.0100.0207.64
4.4.70.0030.0207.64
4.4.60.0030.0277.64
4.4.50.0070.0177.64
4.4.40.0000.0377.64
4.4.30.0030.0207.64
4.4.20.0100.0237.64
4.4.10.0000.0277.64
4.4.00.0030.0337.64
4.3.110.0030.0237.64
4.3.100.0000.0237.64
4.3.90.0000.0237.64
4.3.80.0070.0377.64
4.3.70.0000.0237.64
4.3.60.0100.0237.63
4.3.50.0070.0237.63
4.3.40.0030.0377.63
4.3.30.0070.0277.63
4.3.20.0030.0277.63
4.3.10.0100.0207.63
4.3.00.0100.0238.10

preferences:
43.29 ms | 401 KiB | 5 Q