3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str="a b c d e f g h i j "; $pattern=array(); $pattern[0]="/\ba\b/"; $pattern[1]="/\bb\b/"; $pattern[2]="/\bc\b/"; $pattern[3]="/\bd\b/"; $pattern[4]="/\be\b/"; $pattern[5]="/\bf\b/"; $pattern[6]="/\bg\b/"; $pattern[7]="/\bh\b/"; $pattern[8]="/\bi\b/"; $pattern[9]="/\bj\b/"; $replacement=array(); $replacement[0]="6a"; $replacement[1]="6e"; $replacement[2]="6i"; $replacement[3]="6o"; $replacement[4]="6u"; $replacement[5]="5a"; $replacement[6]="5e"; $replacement[7]="5i"; $replacement[8]="5o"; $replacement[9]="5u"; echo preg_replace($pattern,$replacement,$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)
8.4.140.0090.01117.91
8.4.130.0050.00418.10
8.4.120.0050.00520.84
8.4.110.0120.00918.78
8.4.100.0120.00817.70
8.4.90.0100.01020.61
8.4.80.0110.00818.15
8.4.70.0050.00517.99
8.4.60.0040.00518.90
8.4.50.0130.00718.98
8.4.40.0120.00320.01
8.4.30.0030.00620.57
8.4.20.0030.01720.50
8.4.10.0040.00817.82
8.3.270.0110.01016.56
8.3.260.0150.00516.64
8.3.250.0100.00918.68
8.3.240.0120.00516.85
8.3.230.0050.00416.55
8.3.220.0050.00318.79
8.3.210.0100.00918.55
8.3.200.0030.00616.79
8.3.190.0060.00316.98
8.3.180.0130.00616.41
8.3.170.0130.00617.04
8.3.160.0110.00716.59
8.3.150.0110.00417.19
8.3.140.0040.00416.71
8.3.130.0030.00618.33
8.3.120.0080.00019.07
8.3.110.0040.00420.94
8.3.100.0120.00424.06
8.3.90.0060.00326.77
8.3.80.0060.00316.75
8.3.70.0090.01216.63
8.3.60.0070.01418.11
8.3.50.0050.00917.53
8.3.40.0110.00718.84
8.3.30.0150.00019.10
8.3.20.0080.00020.89
8.3.10.0000.00823.61
8.3.00.0000.00723.61
8.2.290.0070.00316.95
8.2.280.0050.00618.70
8.2.270.0110.00716.86
8.2.260.0090.00617.08
8.2.250.0080.00018.88
8.2.240.0030.00617.23
8.2.230.0060.00322.58
8.2.220.0050.00237.54
8.2.210.0120.00326.77
8.2.200.0060.00316.88
8.2.190.0120.00916.88
8.2.180.0110.00718.79
8.2.170.0040.01219.16
8.2.160.0100.00322.96
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0030.00521.13
8.2.110.0000.01121.15
8.2.100.0110.00018.03
8.2.90.0050.00318.28
8.2.80.0090.00017.97
8.2.70.0040.00417.93
8.2.60.0030.00618.28
8.2.50.0040.00418.10
8.2.40.0000.00819.33
8.2.30.0000.00719.27
8.2.20.0080.00018.21
8.2.10.0000.00719.20
8.2.00.0040.00419.26
8.1.330.0130.00716.84
8.1.320.0060.01416.21
8.1.310.0030.00516.60
8.1.300.0090.00916.43
8.1.290.0060.00318.88
8.1.280.0120.00325.92
8.1.270.0040.00420.77
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0090.00020.81
8.1.230.0040.00720.94
8.1.220.0040.00417.79
8.1.210.0040.00418.90
8.1.200.0030.00517.48
8.1.190.0070.00317.25
8.1.180.0040.00418.10
8.1.170.0090.00018.69
8.1.160.0000.00818.77
8.1.150.0030.00518.73
8.1.140.0070.00022.13
8.1.130.0030.00320.04
8.1.120.0000.00717.54
8.1.110.0040.00417.57
8.1.100.0020.00517.54
8.1.90.0050.00317.46
8.1.80.0000.00817.44
8.1.70.0050.00317.45
8.1.60.0030.00617.73
8.1.50.0000.00817.52
8.1.40.0000.00817.52
8.1.30.0070.00017.72
8.1.20.0000.00917.73
8.1.10.0050.00317.61
8.1.00.0000.00817.53
8.0.300.0050.00219.98
8.0.290.0000.00816.88
8.0.280.0000.00818.45
8.0.270.0040.00417.37
8.0.260.0030.00318.41
8.0.250.0030.00317.03
8.0.240.0030.00317.16
8.0.230.0000.00717.04
8.0.220.0030.00317.04
8.0.210.0000.00817.00
8.0.200.0070.00017.01
8.0.190.0060.00317.00
8.0.180.0030.00517.05
8.0.170.0060.00317.01
8.0.160.0040.00416.96
8.0.150.0040.00416.93
8.0.140.0040.00416.95
8.0.130.0050.00013.41
8.0.120.0070.00016.91
8.0.110.0090.00016.97
8.0.100.0000.00716.93
8.0.90.0050.00216.94
8.0.80.0070.01316.87
8.0.70.0030.00517.05
8.0.60.0070.00016.79
8.0.50.0040.00417.05
8.0.30.0060.00917.28
8.0.20.0120.00817.40
8.0.10.0030.00517.13
8.0.00.0100.01016.73
7.4.330.0000.00515.55
7.4.320.0040.00416.77
7.4.300.0000.00616.57
7.4.290.0030.00316.65
7.4.280.0050.00316.78
7.4.270.0070.00016.79
7.4.260.0030.00316.69
7.4.250.0030.00316.67
7.4.240.0040.00416.77
7.4.230.0080.00016.86
7.4.220.0000.00816.67
7.4.210.0060.01216.71
7.4.200.0040.00416.73
7.4.160.0080.00816.73
7.4.140.0120.00717.86
7.4.130.0060.01216.72
7.4.120.0140.00716.65
7.4.110.0120.00616.72
7.4.100.0120.00616.68
7.4.90.0130.00316.66
7.4.80.0120.00619.39
7.4.70.0130.00916.63
7.4.60.0060.01016.67
7.4.50.0050.01016.64
7.4.40.0080.00916.71
7.4.00.0090.00715.01
7.3.330.0000.00613.10
7.3.320.0030.00313.19
7.3.310.0030.00316.43
7.3.300.0030.00316.36
7.3.290.0060.00016.32
7.3.280.0080.00916.35
7.3.260.0110.00816.43
7.3.240.0070.01016.54
7.3.230.0140.00716.91
7.3.210.0090.01316.66
7.3.200.0070.01016.65
7.3.190.0150.00616.52
7.3.180.0080.00916.43
7.3.170.0100.01016.40
7.3.160.0190.00316.46
7.3.120.0050.01315.05
7.3.110.0080.01014.79
7.3.100.0030.01214.77
7.3.90.0100.00515.07
7.3.80.0050.00814.93
7.3.70.0060.01014.86
7.3.60.0030.00714.89
7.3.50.0080.00614.99
7.3.40.0000.00914.82
7.3.30.0030.01014.97
7.3.20.0070.00916.81
7.3.10.0090.00416.87
7.3.00.0180.00715.94
7.2.330.0140.00916.75
7.2.320.0070.01016.51
7.2.310.0060.01016.57
7.2.300.0100.00716.70
7.2.290.0110.01316.54
7.2.250.0130.00615.29
7.2.240.0060.01315.20
7.2.230.0050.01315.17
7.2.220.0100.00714.92
7.2.210.0100.00214.90
7.2.200.0080.00515.15
7.2.190.0030.00915.16
7.2.180.0030.01115.04
7.2.170.0100.00315.23
7.2.160.0070.01115.14
7.2.150.0100.00717.21
7.2.140.0040.01416.74
7.2.130.0190.00615.78
7.2.120.0260.00315.99
7.2.110.0270.00216.04
7.2.100.0190.00315.87
7.2.90.0250.00916.13
7.2.80.0460.00815.90
7.2.70.0160.00916.14
7.2.60.0210.01016.09
7.2.50.0140.01016.11
7.2.40.0180.01215.95
7.2.30.0200.01315.87
7.2.20.0220.00616.03
7.2.10.0190.00616.15
7.2.00.0250.00316.07
7.1.330.0030.01015.78
7.1.320.0070.00515.94
7.1.310.0070.01015.89
7.1.300.0070.00615.91
7.1.290.0050.00915.84
7.1.280.0040.00715.85
7.1.270.0030.00915.96
7.1.260.0040.00915.94
7.1.250.0170.00514.82

preferences:
156.94 ms | 403 KiB | 5 Q