3v4l.org

run code in 300+ PHP versions simultaneously
<?php $myString = "14f05000034e69"; $test = preg_replace('/(.)(.)/', '$2$1', $myString); echo $test;

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)
8.4.140.0110.01017.69
8.4.130.0110.01018.23
8.4.120.0040.00420.44
8.4.110.0120.00720.50
8.4.100.0050.00418.04
8.4.90.0100.01020.57
8.4.80.0160.00618.76
8.4.70.0040.00518.77
8.4.60.0120.00818.82
8.4.50.0080.01220.59
8.4.40.0100.00017.99
8.4.30.0070.01519.53
8.4.20.0100.00720.35
8.4.10.0090.00019.69
8.3.270.0090.01016.46
8.3.260.0120.00716.66
8.3.250.0150.00518.51
8.3.240.0090.01016.79
8.3.230.0100.00516.66
8.3.220.0100.00819.05
8.3.210.0130.00718.43
8.3.200.0060.00216.92
8.3.190.0120.00818.82
8.3.180.0110.00818.90
8.3.170.0060.01216.62
8.3.160.0030.01416.93
8.3.150.0110.00418.86
8.3.140.0080.00020.51
8.3.130.0040.00418.53
8.3.120.0030.00718.68
8.3.110.0130.00320.94
8.3.100.0090.00624.06
8.3.90.0120.00326.77
8.3.80.0060.00317.97
8.3.70.0110.00718.37
8.3.60.0130.00918.30
8.3.50.0080.00517.21
8.3.40.0070.01418.92
8.3.30.0140.00718.89
8.3.20.0040.00419.20
8.3.10.0070.00023.61
8.3.00.0070.00020.72
8.2.290.0100.01020.44
8.2.280.0120.00718.58
8.2.270.0060.00316.58
8.2.260.0110.00716.90
8.2.250.0110.00718.64
8.2.240.0130.00617.48
8.2.230.0060.00322.58
8.2.220.0040.00437.54
8.2.210.0050.00326.77
8.2.200.0060.00316.75
8.2.190.0130.00616.58
8.2.180.0090.00918.41
8.2.170.0160.00319.08
8.2.160.0110.00422.96
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0000.00826.16
8.2.120.0080.00020.82
8.2.110.0080.00419.30
8.2.100.0000.01317.91
8.2.90.0030.00618.09
8.2.80.0030.00518.03
8.2.70.0000.00817.89
8.2.60.0000.00818.07
8.2.50.0080.00018.10
8.2.40.0000.00719.19
8.2.30.0000.00720.63
8.2.20.0000.00718.09
8.2.10.0050.00318.21
8.2.00.0000.00719.50
8.1.330.0120.00716.50
8.1.320.0170.00418.11
8.1.310.0060.00916.97
8.1.300.0000.00918.07
8.1.290.0030.00730.84
8.1.280.0100.01025.92
8.1.270.0040.00423.90
8.1.260.0030.00626.35
8.1.250.0040.00428.09
8.1.240.0040.00423.88
8.1.230.0130.00022.68
8.1.220.0040.00417.76
8.1.210.0040.00418.77
8.1.200.0090.00417.37
8.1.190.0000.00817.35
8.1.180.0030.00518.10
8.1.170.0000.00818.81
8.1.160.0000.00718.87
8.1.150.0040.00418.86
8.1.140.0000.00820.74
8.1.130.0030.00320.25
8.1.120.0050.00217.54
8.1.110.0070.00017.54
8.1.100.0060.00317.55
8.1.90.0000.00717.56
8.1.80.0030.00517.41
8.1.70.0040.00417.45
8.1.60.0040.00417.55
8.1.50.0030.00617.48
8.1.40.0000.00817.59
8.1.30.0040.00717.70
8.1.20.0040.00417.64
8.1.10.0080.00017.64
8.1.00.0080.00017.63
8.0.300.0040.00421.82
8.0.290.0000.00816.88
8.0.280.0030.00318.46
8.0.270.0030.00317.18
8.0.260.0060.00322.01
8.0.250.0000.00716.98
8.0.240.0040.00416.97
8.0.230.0070.00017.10
8.0.220.0000.00716.97
8.0.210.0000.00716.86
8.0.200.0000.00717.07
8.0.190.0070.00017.06
8.0.180.0070.00316.98
8.0.170.0060.00317.02
8.0.160.0000.00716.89
8.0.150.0000.00716.88
8.0.140.0070.00016.95
8.0.130.0030.00313.44
8.0.120.0080.00016.97
8.0.110.0030.00516.90
8.0.100.0040.00417.01
8.0.90.0040.00417.02
8.0.80.0090.00716.99
8.0.70.0040.00417.01
8.0.60.0040.00416.95
8.0.50.0050.00216.77
8.0.30.0080.01217.08
8.0.20.0080.00817.40
8.0.10.0100.00016.98
8.0.00.0110.01116.81
7.4.330.0030.00315.55
7.4.320.0030.00316.67
7.4.300.0030.00316.65
7.4.290.0000.00716.69
7.4.280.0080.00016.58
7.4.270.0000.00716.57
7.4.260.0000.00716.78
7.4.250.0000.00816.51
7.4.240.0000.00716.65
7.4.230.0030.00316.77
7.4.220.0060.00316.83
7.4.210.0130.00216.71
7.4.200.0000.00716.82
7.4.160.0080.00716.61
7.4.140.0120.00717.86
7.4.130.0070.01116.59
7.4.120.0120.00816.69
7.4.110.0180.00716.70
7.4.100.0120.00616.52
7.4.90.0060.01216.62
7.4.80.0060.01219.39
7.4.70.0050.01416.56
7.4.60.0000.01816.63
7.4.50.0120.00416.83
7.4.40.0110.01116.57
7.4.00.0020.01515.01
7.3.330.0020.00213.27
7.3.320.0040.00213.18
7.3.310.0000.00716.19
7.3.300.0040.00416.20
7.3.290.0070.00016.29
7.3.280.0100.01116.35
7.3.260.0110.00716.39
7.3.240.0130.01016.48
7.3.230.0060.01016.63
7.3.210.0090.00916.58
7.3.200.0100.00716.69
7.3.190.0030.01216.29
7.3.180.0110.01316.45
7.3.170.0090.00616.67
7.3.160.0130.00616.74
7.3.120.0060.01014.75
7.3.110.0070.01015.03
7.3.100.0060.00915.05
7.3.90.0040.00814.65
7.3.80.0000.01114.93
7.3.70.0040.00814.91
7.3.60.0100.00715.02
7.3.50.0070.00714.77
7.3.40.0070.00715.01
7.3.30.0120.00414.77
7.3.20.0110.00416.71
7.3.10.0070.00316.52
7.3.00.0060.00316.74
7.2.330.0070.01716.64
7.2.320.0070.01516.68
7.2.310.0110.01116.77
7.2.300.0040.01416.71
7.2.290.0110.00516.64
7.2.250.0080.00815.14
7.2.240.0110.00714.97
7.2.230.0070.01115.14
7.2.220.0000.00914.99
7.2.210.0030.01014.93
7.2.200.0090.00615.26
7.2.190.0000.01715.20
7.2.180.0100.00315.07
7.2.170.0110.00715.20
7.2.90.1630.01614.58
7.2.80.0110.00715.14
7.2.70.0110.00415.00
7.2.60.0140.00014.90
7.2.50.0290.00914.99
7.2.40.0630.00315.21
7.2.30.0480.00015.21
7.2.20.0250.01015.20
7.2.10.0110.00515.28
7.2.00.1170.00915.17
7.1.330.0040.01115.83
7.1.320.0090.00915.98
7.1.310.0080.00415.82
7.1.300.0110.00016.02
7.1.290.0100.00616.03
7.1.280.0080.00416.03
7.1.270.0070.00715.69
7.1.260.0000.01515.96
7.1.210.0690.01513.78
7.1.200.0060.01314.14
7.1.190.1500.00314.13
7.1.180.0200.01014.25
7.1.170.0090.00914.27
7.1.160.0140.00414.04
7.1.150.0110.00713.89
7.1.140.1590.00313.96
7.1.130.0380.00913.85
7.1.120.0090.00613.86
7.1.110.0090.00714.07
7.1.100.0040.01514.17
7.1.90.0720.00014.04
7.1.80.0120.00414.02
7.1.70.0350.00614.32
7.1.60.0330.00931.93
7.1.50.0350.00932.09
7.1.40.3180.01332.05
7.1.30.2550.01431.96
7.1.20.2200.00732.09
7.1.10.0120.00414.12
7.1.00.0150.00314.14

preferences:
30.85 ms | 403 KiB | 5 Q