3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "Hello, How Are You."; echo preg_replace_callback("/([a-z]+)/i",function($m){ return implode(array_map('strrev',str_split($m[0],2))); },$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)
8.5.10.0120.00519.88
8.5.00.0160.00720.19
8.4.150.0020.00014.05
8.4.140.0150.00517.75
8.4.130.0120.00918.01
8.4.120.0060.00320.50
8.4.110.0130.00622.40
8.4.100.0120.00218.06
8.4.90.0120.00918.63
8.4.80.0120.00818.23
8.4.70.0160.00718.17
8.4.60.0140.00720.50
8.4.50.0130.00820.02
8.4.40.0030.01717.77
8.4.30.0100.01017.98
8.4.20.0180.00418.01
8.4.10.0080.00817.85
8.3.280.0130.00718.41
8.3.270.0090.01116.39
8.3.260.0100.00816.57
8.3.250.0100.00918.98
8.3.240.0120.00716.66
8.3.230.0040.00416.90
8.3.220.0150.00117.23
8.3.210.0100.01016.75
8.3.200.0050.00416.65
8.3.190.0150.00318.98
8.3.180.0110.00816.76
8.3.170.0080.00017.12
8.3.160.0110.00718.70
8.3.150.0100.01020.86
8.3.140.0150.00020.74
8.3.130.0000.00818.52
8.3.120.0060.01319.04
8.3.110.0070.01420.94
8.3.100.0090.00024.06
8.3.90.0050.00326.77
8.3.80.0000.00917.97
8.3.70.0030.01218.43
8.3.60.0100.01316.63
8.3.50.0120.00621.28
8.3.40.0110.00718.81
8.3.30.0040.01118.87
8.3.20.0070.00020.33
8.3.10.0040.00421.90
8.3.00.0080.00021.90
8.2.290.0120.00720.54
8.2.280.0030.00718.48
8.2.270.0120.00617.07
8.2.260.0090.00918.98
8.2.250.0070.00416.70
8.2.240.0040.00418.85
8.2.230.0060.00322.58
8.2.220.0030.00637.54
8.2.210.0000.00826.77
8.2.200.0060.00318.66
8.2.190.0060.01316.75
8.2.180.0090.00618.66
8.2.170.0040.01122.96
8.2.160.0030.01020.41
8.2.150.0000.00824.18
8.2.140.0000.00724.66
8.2.130.0000.00826.16
8.2.120.0000.00721.00
8.2.110.0030.00621.25
8.2.100.0070.00417.84
8.2.90.0050.00319.44
8.2.80.0000.00817.97
8.2.70.0090.00018.03
8.2.60.0050.00318.22
8.2.50.0050.00318.10
8.2.40.0040.00419.46
8.2.30.0040.00419.50
8.2.20.0000.00817.81
8.2.10.0040.00418.14
8.2.00.0040.00418.14
8.1.330.0090.01022.11
8.1.320.0120.00816.41
8.1.310.0060.00316.87
8.1.300.0060.01318.28
8.1.290.0030.00630.84
8.1.280.0070.01125.92
8.1.270.0000.00722.05
8.1.260.0150.00326.35
8.1.250.0080.00028.09
8.1.240.0070.00322.55
8.1.230.0030.00920.88
8.1.220.0030.00617.77
8.1.210.0000.00819.03
8.1.200.0040.00417.47
8.1.190.0040.00417.48
8.1.180.0070.00418.10
8.1.170.0000.00818.63
8.1.160.0040.00420.78
8.1.150.0000.00820.73
8.1.140.0000.00919.59
8.1.130.0030.00617.65
8.1.120.0000.00717.51
8.1.110.0050.00317.54
8.1.100.0030.00617.65
8.1.90.0060.00317.65
8.1.80.0030.00617.63
8.1.70.0030.00517.52
8.1.60.0000.00717.74
8.1.50.0030.00617.55
8.1.40.0050.00317.57
8.1.30.0030.00617.66
8.1.20.0040.00417.80
8.1.10.0030.00617.75
8.1.00.0070.00317.68
8.0.300.0000.00720.08
8.0.290.0070.00316.75
8.0.280.0070.00018.39
8.0.270.0000.00717.25
8.0.260.0030.00317.19
8.0.250.0000.00817.02
8.0.240.0000.00817.07
8.0.230.0000.00716.93
8.0.220.0040.00416.98
8.0.210.0000.00716.88
8.0.200.0020.00517.14
8.0.190.0040.00417.00
8.0.180.0040.00416.99
8.0.170.0000.00817.12
8.0.160.0070.00017.07
8.0.150.0000.01016.89
8.0.140.0000.00716.89
8.0.130.0050.00013.45
8.0.120.0030.00516.86
8.0.110.0070.00016.95
8.0.100.0070.00017.11
8.0.90.0050.00317.09
8.0.80.0070.00816.95
8.0.70.0030.00617.05
8.0.60.0050.00317.04
8.0.50.0080.00016.87
8.0.30.0110.00817.17
8.0.20.0140.00917.40
8.0.10.0040.00417.14
8.0.00.0110.00717.08
7.4.330.0000.00516.91
7.4.320.0030.00316.80
7.4.300.0030.00316.86
7.4.290.0110.00016.72
7.4.280.0050.00216.71
7.4.270.0030.00316.84
7.4.260.0000.00716.60
7.4.250.0040.00416.68
7.4.240.0040.00416.67
7.4.230.0030.00316.90
7.4.220.0090.01016.82
7.4.210.0080.00816.69
7.4.200.0080.00016.75
7.4.160.0120.00316.85
7.4.150.0060.01217.40
7.4.140.0110.01617.86
7.4.130.0080.01016.75
7.4.120.0090.00916.74
7.4.110.0100.01016.71
7.4.100.0090.00916.90
7.4.90.0040.01416.60
7.4.80.0060.01619.39
7.4.70.0070.01016.59
7.4.60.0160.00016.64
7.4.50.0060.00616.77
7.4.40.0100.00616.60
7.4.30.0070.01316.57
7.4.00.0090.00615.36
7.3.330.0040.00413.23
7.3.320.0000.00513.29
7.3.310.0000.00716.27
7.3.300.0030.00316.34
7.3.290.0000.00716.38
7.3.280.0060.01116.39
7.3.270.0080.01117.40
7.3.260.0090.01016.79
7.3.250.0080.00816.61
7.3.240.0120.00516.52
7.3.230.0100.00616.43
7.3.210.0130.00416.70
7.3.200.0110.00719.39
7.3.190.0130.01016.40
7.3.180.0100.00716.43
7.3.170.0130.00916.88
7.3.160.0060.01016.36
7.2.330.0080.01116.80
7.2.320.0130.01016.65
7.2.310.0080.00816.95
7.2.300.0090.00816.65
7.2.290.0090.00616.75
7.2.110.0110.00016.57
7.2.100.0130.00016.84
7.2.90.0070.00716.82
7.2.80.0030.01316.89
7.2.70.0090.00317.16
7.2.60.0070.00617.12
7.2.50.0060.00917.11
7.2.40.0100.00317.18
7.2.30.0060.00817.06
7.2.20.0030.01017.08
7.2.10.0040.01217.05
7.2.00.0070.00818.24
7.1.230.0030.01016.06
7.1.220.0090.00316.05
7.1.210.0070.00415.80
7.1.200.0020.01216.04
7.1.190.0000.00815.75
7.1.180.0160.00015.97
7.1.170.0090.00316.02
7.1.160.0060.00615.92
7.1.150.0000.01515.92
7.1.140.0070.00715.98
7.1.130.0100.00316.02
7.1.120.0100.00316.07
7.1.110.0030.00615.86
7.1.100.0050.00717.36
7.1.90.0030.01016.04
7.1.80.0090.00316.11
7.1.70.0110.00216.75
7.1.60.0060.00917.77
7.1.50.0080.00816.61
7.1.40.0030.00916.18
7.1.30.0000.01016.17
7.1.20.0060.01015.91
7.1.10.0070.00716.02
7.1.00.0090.03419.13
7.0.310.0070.01015.61
7.0.300.0060.00615.41
7.0.290.0000.00915.58
7.0.280.0070.00715.41
7.0.270.0030.00515.44
7.0.260.0100.00315.19
7.0.250.0090.00315.55
7.0.240.0030.00615.69
7.0.230.0030.00615.39
7.0.220.0000.01015.38
7.0.210.0070.00315.45
7.0.200.0210.01115.02
7.0.190.0120.00015.39
7.0.180.0060.00315.31
7.0.170.0000.01415.63
7.0.160.0100.00315.66
7.0.150.0070.00415.46
7.0.140.0040.00815.26
7.0.130.0030.00815.23
7.0.120.0000.01315.39
7.0.110.0000.01415.64
7.0.100.0060.00615.66
7.0.90.0150.00015.68
7.0.80.0060.00615.40
7.0.70.0000.01415.64
7.0.60.0130.04318.72
7.0.50.0040.03616.66
7.0.40.0050.04516.98
7.0.30.0180.02716.85
7.0.20.0070.02816.93
7.0.10.0080.02016.89
7.0.00.0020.05116.89
5.6.380.0040.00714.51
5.6.370.0100.00314.69
5.6.360.0030.00914.70
5.6.350.0030.01014.38
5.6.340.0060.00614.43
5.6.330.0100.00314.63
5.6.320.0030.01014.02
5.6.310.0070.00714.46
5.6.300.0110.00014.53
5.6.290.0030.00414.46
5.6.280.0020.03717.69
5.6.270.0080.00014.15
5.6.260.0070.00714.40
5.6.250.0080.00314.43
5.6.240.0040.00814.37
5.6.230.0070.00714.57
5.6.220.0000.00714.20
5.6.210.0080.03717.54
5.6.200.0060.04516.34
5.6.190.0040.02617.49
5.6.180.0150.03017.67
5.6.170.0210.03617.42
5.6.160.0070.03017.46
5.6.150.0020.02716.45
5.6.140.0080.02816.29
5.6.130.0050.03216.27
5.6.120.0050.03217.59
5.6.110.0020.02917.59
5.6.100.0050.04817.73
5.6.90.0050.02217.82
5.6.80.0070.03517.27
5.6.70.0060.00614.36
5.6.60.0040.00814.34
5.6.50.0030.01014.47
5.6.40.0050.00214.02
5.6.30.0000.01114.15
5.6.20.0090.00314.16
5.6.10.0060.00614.30
5.6.00.0000.00914.21
5.5.380.0030.00711.16
5.5.370.0040.00410.97
5.5.360.0000.00711.21
5.5.350.0190.04015.69
5.5.340.0120.03714.60
5.5.330.0060.02015.80
5.5.320.0150.02215.72
5.5.310.0180.04115.65
5.5.300.0040.02714.63
5.5.290.0060.04214.60
5.5.280.0060.02516.19
5.5.270.0030.04615.95
5.5.260.0070.03916.18
5.5.250.0030.04616.00
5.5.240.0150.03615.72
5.5.230.0060.00611.37
5.5.220.0000.00511.23
5.5.210.0050.00311.04
5.5.200.0000.01111.24
5.5.190.0000.00511.29
5.5.180.0030.00711.06
5.5.170.0000.01014.26
5.5.160.0000.01111.12
5.5.150.0060.00611.38
5.5.140.0030.00311.13
5.5.130.0000.01011.45
5.5.120.0000.01111.20
5.5.110.0060.00311.35
5.5.100.0030.00311.01
5.5.90.0030.00811.15
5.5.80.0090.00311.30
5.5.70.0070.00711.33
5.5.60.0080.00011.26
5.5.50.0030.00511.19
5.5.40.0000.01211.00
5.5.30.0000.01211.37
5.5.20.0060.00611.00
5.5.10.0040.00411.11
5.5.00.0030.00311.02

preferences:
42.31 ms | 403 KiB | 5 Q