3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "oAAAoooo"; echo preg_replace_callback( '/([\x00-\x1F\*\(\)\\\\])/', function ($matches) { return "\\".join("", unpack("H2", $matches[1])); }, $str ); $str = "oAAAoooo"; function matches($matches) { return "\\".join("", unpack("H2", $matches[1])); } echo ' ' . 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)
8.3.40.0070.00718.95
8.3.30.0070.01020.34
8.3.20.0040.00420.40
8.3.10.0090.00622.21
8.3.00.0080.00022.57
8.2.170.0060.00922.96
8.2.160.0140.00020.25
8.2.150.0000.00824.18
8.2.140.0000.00824.66
8.2.130.0000.01426.16
8.2.120.0040.00419.66
8.2.110.0060.00322.25
8.2.100.0120.00019.41
8.2.90.0000.00819.19
8.2.80.0000.00919.53
8.2.70.0030.00617.61
8.2.60.0000.00817.80
8.2.50.0000.00818.07
8.2.40.0080.00018.16
8.2.30.0040.00418.21
8.2.20.0000.00717.88
8.2.10.0000.00718.07
8.2.00.0040.00417.96
8.1.270.0080.00024.66
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0060.00323.90
8.1.230.0110.00019.15
8.1.220.0000.00817.79
8.1.210.0050.00318.77
8.1.200.0030.00617.48
8.1.190.0000.00817.54
8.1.180.0000.00918.10
8.1.170.0040.00418.71
8.1.160.0040.00422.30
8.1.150.0030.00518.80
8.1.140.0000.00717.61
8.1.130.0050.00317.97
8.1.120.0040.00717.65
8.1.110.0000.00717.75
8.1.100.0040.00417.77
8.1.90.0040.00417.77
8.1.80.0070.00017.73
8.1.70.0000.00717.77
8.1.60.0000.00917.90
8.1.50.0000.00717.88
8.1.40.0040.00417.81
8.1.30.0080.00017.88
8.1.20.0080.00017.91
8.1.10.0060.00317.86
8.1.00.0040.00417.70
8.0.300.0040.00418.77
8.0.290.0040.00417.30
8.0.280.0000.00718.59
8.0.270.0030.00317.49
8.0.260.0030.00317.10
8.0.250.0000.00717.27
8.0.240.0000.00817.28
8.0.230.0040.00317.27
8.0.220.0040.00417.24
8.0.210.0050.00317.11
8.0.200.0040.00417.25
8.0.190.0000.00717.26
8.0.180.0030.00317.22
8.0.170.0000.00817.21
8.0.160.0040.00417.05
8.0.150.0000.00717.06
8.0.140.0040.00417.13
8.0.130.0000.00613.64
8.0.120.0000.01017.14
8.0.110.0070.00017.17
8.0.100.0040.00417.38
8.0.90.0030.00617.30
8.0.80.0040.01117.10
8.0.70.0040.00417.23
8.0.60.0050.00217.16
8.0.50.0040.00416.96
8.0.30.0130.00817.50
8.0.20.0130.01017.52
8.0.10.0000.00817.30
8.0.00.0110.00817.10
7.4.330.0030.00315.00
7.4.320.0060.00016.80
7.4.300.0000.00616.80
7.4.290.0030.00316.98
7.4.280.0000.00816.96
7.4.270.0000.00717.02
7.4.260.0070.00016.81
7.4.250.0040.00416.71
7.4.240.0030.00516.90
7.4.230.0030.00316.99
7.4.220.0030.01416.81
7.4.210.0090.00716.92
7.4.200.0030.00317.02
7.4.190.0000.00717.09
7.4.160.0160.00616.69
7.4.150.0060.01217.40
7.4.140.0150.00717.86
7.4.130.0100.01016.63
7.4.120.0120.00516.59
7.4.110.0130.01016.78
7.4.100.0180.00617.04
7.4.90.0090.01216.72
7.4.80.0090.01319.39
7.4.70.0070.01016.80
7.4.60.0100.00716.74
7.4.50.0000.00516.64
7.4.40.0060.01022.77
7.4.30.0070.01016.90
7.4.00.0070.01015.20
7.3.330.0000.00513.38
7.3.320.0000.00513.47
7.3.310.0000.00716.57
7.3.300.0070.00016.36
7.3.290.0030.01116.50
7.3.280.0060.01316.54
7.3.270.0100.00717.40
7.3.260.0120.00616.89
7.3.250.0110.00816.51
7.3.240.0090.01316.59
7.3.230.0120.00416.84
7.3.210.0070.01016.48
7.3.200.0070.01019.39
7.3.190.0160.00616.75
7.3.180.0130.00316.72
7.3.170.0120.00316.79
7.3.160.0030.01316.75
7.3.120.0030.01415.20
7.3.110.0070.00714.96
7.3.100.0070.01015.20
7.3.90.0000.01414.93
7.3.80.0140.00314.98
7.3.70.0100.00315.10
7.3.60.0090.00314.95
7.3.50.0070.00714.84
7.3.40.0060.01015.02
7.3.30.0030.00914.87
7.3.20.0000.01116.71
7.3.10.0030.01516.93
7.3.00.0000.01416.88
7.2.330.0100.00716.83
7.2.320.0100.01416.73
7.2.310.0070.01016.71
7.2.300.0060.01316.62
7.2.290.0070.01016.86
7.2.240.0040.01415.16
7.2.230.0100.00015.24
7.2.220.0100.00315.12
7.2.210.0140.00015.27
7.2.200.0030.01314.96
7.2.190.0070.01115.03
7.2.180.0070.00715.23
7.2.170.0030.00715.35
7.2.160.0090.00615.23
7.2.150.0070.00416.96
7.2.140.0030.01216.90
7.2.130.0110.00716.95
7.2.120.0080.00817.11
7.2.110.0060.00916.85
7.2.100.0060.00617.15
7.2.90.0070.01117.13
7.2.80.0110.00717.12
7.2.70.0070.00717.06
7.2.60.0070.01016.95
7.2.50.0040.01117.11
7.2.40.0070.01017.00
7.2.30.0000.01117.02
7.2.20.0040.01117.08
7.2.10.0030.01517.05
7.2.00.0000.01318.46
7.1.330.0080.00615.98
7.1.320.0000.01415.61
7.1.310.0030.01316.19
7.1.300.0070.00715.79
7.1.290.0100.00316.00
7.1.280.0030.00915.85
7.1.270.0030.01015.74
7.1.260.0060.01216.18
7.1.250.0080.00415.95
7.1.100.0060.00318.45
7.1.70.0060.00617.01
7.1.60.0000.02519.21
7.1.50.0130.01317.07
7.1.00.0030.04322.30
7.0.200.0060.01015.09
7.0.140.0030.07022.11
7.0.60.0000.04319.95
7.0.50.0070.04317.88
7.0.40.0070.04020.12
7.0.30.0300.05320.17
7.0.20.0470.06720.22
7.0.10.0300.06320.11
7.0.00.0000.09020.24
5.6.280.0100.06721.10
5.6.210.0000.04320.73
5.6.200.0030.08718.27
5.6.190.0100.08320.76
5.6.180.0170.06020.61
5.6.170.0230.04320.43
5.6.160.0100.06720.52
5.6.150.0130.07718.15
5.6.140.0170.07318.28
5.6.130.0130.07318.28
5.6.120.0130.08020.90
5.6.110.0170.07721.15
5.6.100.0000.06321.09
5.6.90.0030.08721.11
5.6.80.0030.07720.52
5.6.70.0130.03020.51
5.5.350.0070.06320.44
5.5.340.0100.05718.07
5.5.330.0030.06320.42
5.5.320.0230.07020.36
5.5.310.0230.08020.37
5.5.300.0030.05317.97
5.5.290.0000.04317.94
5.5.280.0030.04320.80
5.5.270.0070.08020.75
5.5.260.0030.09020.88
5.5.250.0170.05720.50
5.5.240.0100.08020.16
5.4.450.0870.05319.61
5.4.440.0800.05719.48
5.4.430.0770.05719.38
5.4.420.0600.06019.46
5.4.410.0800.07019.42
5.4.400.0330.05718.62
5.4.390.0470.04718.63
5.4.380.0270.05318.57
5.4.370.0070.05718.63
5.4.360.0170.05018.73
5.4.350.0060.03912.02
5.4.340.0030.04512.02
5.4.320.0050.04412.51
5.4.310.0070.05412.50
5.4.300.0050.04612.51
5.4.290.0050.04512.51
5.4.280.0100.03912.40
5.4.270.0100.03712.40
5.4.260.0080.04412.41
5.4.250.0070.06718.90
5.4.240.0130.06018.73
5.4.230.0070.05318.91
5.4.220.0070.08318.90
5.4.210.0130.07319.00
5.4.200.0130.04718.82
5.4.190.0100.04719.00
5.4.180.0030.05718.77
5.4.170.0070.05718.75
5.4.160.0130.06318.90
5.4.150.0070.05318.90
5.4.140.0000.05716.50
5.4.130.0130.04016.34
5.4.120.0070.05316.53
5.4.110.0170.07016.42
5.4.100.0100.05016.30
5.4.90.0100.04316.42
5.4.80.0030.05016.50
5.4.70.0100.04716.65
5.4.60.0000.05316.37
5.4.50.0130.04316.24
5.4.40.0130.05716.43
5.4.30.0070.05316.50
5.4.20.0130.04316.43
5.4.10.0100.05016.38
5.4.00.0130.04315.83
5.3.290.0080.04812.80
5.3.280.0100.05314.69
5.3.270.0270.03714.69
5.3.260.0130.05714.59
5.3.250.0100.05014.44
5.3.240.0100.07314.74
5.3.230.0130.04714.68
5.3.220.0100.06014.59
5.3.210.0000.06014.66
5.3.200.0100.04714.54
5.3.190.0130.04314.73
5.3.180.0130.06314.54
5.3.170.0170.06014.65
5.3.160.0170.06014.75
5.3.150.0170.04014.73
5.3.140.0170.04014.55
5.3.130.0070.06014.55
5.3.120.0030.05314.55
5.3.110.0070.05314.55
5.3.100.0030.05314.05
5.3.90.0100.04714.20
5.3.80.0070.05714.24
5.3.70.0070.05014.11
5.3.60.0070.05013.98
5.3.50.0130.04714.02
5.3.40.0130.05014.18
5.3.30.0170.07013.89
5.3.20.0030.05313.79
5.3.10.0030.05013.62
5.3.00.0100.04713.72
5.2.170.0100.04311.25
5.2.160.0070.05310.90
5.2.150.0130.03711.07
5.2.140.0030.04711.05
5.2.130.0070.04011.09
5.2.120.0070.03710.93
5.2.110.0100.03311.09
5.2.100.0100.04011.03
5.2.90.0070.03710.86
5.2.80.0000.04711.00
5.2.70.0030.04711.18
5.2.60.0000.04311.14
5.2.50.0000.04711.16
5.2.40.0100.03711.00
5.2.30.0100.03710.81
5.2.20.0070.04010.96
5.2.10.0030.04011.08
5.2.00.0130.05010.73
5.1.60.0030.0379.76
5.1.50.0000.04710.06
5.1.40.0070.03310.16
5.1.30.0100.03010.41
5.1.20.0100.03710.43
5.1.10.0030.03710.13
5.1.00.0030.03710.12
5.0.50.0000.0308.39
5.0.40.0070.0378.35
5.0.30.0070.0408.24
5.0.20.0070.0238.23
5.0.10.0070.0378.16
5.0.00.0100.0408.21
4.4.90.0000.0237.64
4.4.80.0030.0207.64
4.4.70.0000.0237.64
4.4.60.0000.0237.64
4.4.50.0030.0207.64
4.4.40.0030.0437.64
4.4.30.0030.0207.64
4.4.20.0000.0237.64
4.4.10.0030.0207.64
4.4.00.0030.0307.64
4.3.110.0030.0307.64
4.3.100.0070.0277.64
4.3.90.0070.0177.64
4.3.80.0000.0337.64
4.3.70.0030.0177.64
4.3.60.0030.0207.64
4.3.50.0030.0237.64
4.3.40.0100.0277.64
4.3.30.0000.0277.64
4.3.20.0030.0207.64
4.3.10.0000.0237.64
4.3.00.0070.0206.55

preferences:
47.85 ms | 400 KiB | 5 Q