3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = '/[^A-Za-z0-9 \r\n@£$¥èéùìòÇØøÅå\x\{0394\}\x\{03A6\}\x\{0393\}\x\{039B\}\x\{03A9\}\x\{03A0\}\x\{03A8\}\x\{03A3\}\x\{0398\}\x\{039E\}ÆæßÉ!"#$%&amp;\'()*+,\-.\/:;<>&lt;=&gt;?¡ÄÖÑܧ¿äöñüà^{}\\\[~\]|\x\{20AC\}]+/'; $data = 'asdf‘‼'; $tmp = []; $result = preg_match_all($x,$data,$tmp); var_dump($tmp); $z = $tmp[0][0]; #$z = utf8_encode($z); #$z = iconv(mb_detect_encoding($z, mb_detect_order(), true), "UTF-8", $z); var_dump(mb_detect_encoding($z)); var_dump($z);

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)
8.3.60.0150.00316.61
8.3.50.0110.00416.50
8.3.40.0090.00518.96
8.3.30.0090.00618.76
8.3.20.0040.00420.30
8.3.10.0080.00023.53
8.3.00.0030.00619.25
8.2.180.0120.00918.55
8.2.170.0180.00022.96
8.2.160.0100.00720.39
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00821.05
8.2.120.0070.00026.35
8.2.110.0050.00520.92
8.2.100.0080.00418.03
8.2.90.0030.00519.17
8.2.80.0030.00517.97
8.2.70.0040.00417.75
8.2.60.0080.00017.93
8.2.50.0000.00818.10
8.2.40.0050.00320.59
8.2.30.0070.00019.41
8.2.20.0000.00718.02
8.2.10.0020.00518.03
8.2.00.0040.00418.13
8.1.280.0150.00425.92
8.1.270.0030.00622.19
8.1.260.0000.00726.35
8.1.250.0050.00528.09
8.1.240.0090.00020.83
8.1.230.0040.00822.20
8.1.220.0050.00317.76
8.1.210.0050.00318.77
8.1.200.0070.00317.60
8.1.190.0000.00817.35
8.1.180.0040.00418.10
8.1.170.0040.00420.43
8.1.160.0070.00019.02
8.1.150.0040.00418.82
8.1.140.0040.00419.66
8.1.130.0030.00318.82
8.1.120.0000.00717.59
8.1.110.0040.00417.52
8.1.100.0000.00717.48
8.1.90.0080.00017.57
8.1.80.0000.00717.57
8.1.70.0030.00317.62
8.1.60.0090.00017.73
8.1.50.0040.00417.65
8.1.40.0030.00617.63
8.1.30.0080.00017.78
8.1.20.0070.00317.74
8.1.10.0000.00817.79
8.1.00.0070.00017.61
8.0.300.0000.00718.77
8.0.290.0040.00416.75
8.0.280.0000.00718.46
8.0.270.0030.00317.27
8.0.260.0000.00616.97
8.0.250.0040.00417.09
8.0.240.0040.00417.12
8.0.230.0000.00717.08
8.0.220.0060.00016.93
8.0.210.0050.00217.07
8.0.200.0000.00717.10
8.0.190.0060.00317.02
8.0.180.0070.00017.02
8.0.170.0040.00417.01
8.0.160.0040.00416.93
8.0.150.0040.00417.01
8.0.140.0040.00416.96
8.0.130.0060.00013.48
8.0.120.0050.00217.04
8.0.110.0040.00417.07
8.0.100.0020.00516.97
8.0.90.0030.00517.02
8.0.80.0090.00617.05
8.0.70.0030.00517.02
8.0.60.0000.00817.14
8.0.50.0040.00416.92
8.0.30.0090.01017.23
8.0.20.0080.01017.41
8.0.10.0030.00317.13
8.0.00.0120.00616.77
7.4.330.0020.00215.55
7.4.320.0030.00316.67
7.4.300.0030.00316.75
7.4.290.0070.00416.60
7.4.280.0000.01016.67
7.4.270.0000.00716.70
7.4.260.0030.00316.74
7.4.250.0000.00816.69
7.4.240.0000.00716.77
7.4.230.0030.00316.81
7.4.220.0060.01216.89
7.4.210.0030.01016.87
7.4.200.0030.00316.79
7.4.160.0070.01016.60
7.4.150.0080.00917.40
7.4.140.0090.01017.86
7.4.130.0060.01616.65
7.4.120.0090.01316.71
7.3.330.0050.00013.14
7.3.320.0030.00313.14
7.3.310.0000.00716.41
7.3.300.0040.00416.44
7.3.290.0090.00916.50
7.3.280.0070.00916.47
7.3.270.0140.00317.40
7.3.260.0090.01116.49
7.3.250.0140.00816.56
7.3.240.0100.00916.44
7.1.60.0100.01435.38

preferences:
35.51 ms | 400 KiB | 5 Q