3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = str_repeat("Iñtërnâtiônàlizætiøn", 10); echo strlen($string) . "\n"; $result = preg_match( '/\A(?: [\x00-\x7F]+ # ASCII | [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte | \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs | [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte | \xED[\x80-\x9F][\x80-\xBF] # excluding surrogates | \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3 | [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15 | \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16 )*\z/x', $string ); echo "result: "; var_dump($result); echo "pcre.jit: "; var_dump(ini_get('pcre.jit')); echo "pcre.backtrack_limit: "; var_dump(ini_get('pcre.backtrack_limit')); echo "pcre.recursion_limit: "; var_dump(ini_get('pcre.recursion_limit')); if(defined('PREG_JIT_STACKLIMIT_ERROR')){ assert(preg_last_error() === PREG_JIT_STACKLIMIT_ERROR); }

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)
8.3.60.0180.00418.56
8.3.50.0120.00722.10
8.3.40.0070.00719.09
8.3.30.0110.00718.96
8.3.20.0000.00920.26
8.3.10.0070.00021.89
8.3.00.0040.00420.91
8.2.180.0100.00716.88
8.2.170.0140.00022.96
8.2.160.0150.00419.08
8.2.150.0000.00824.18
8.2.140.0040.01124.66
8.2.130.0070.00022.21
8.2.120.0040.00426.35
8.2.110.0030.00619.34
8.2.100.0120.00018.03
8.2.90.0000.00819.19
8.2.80.0060.00317.97
8.2.70.0040.00417.75
8.2.60.0050.00317.93
8.2.50.0030.00518.10
8.2.40.0040.00420.63
8.2.30.0050.00219.16
8.2.20.0040.00417.82
8.2.10.0000.00718.10
8.2.00.0000.00717.97
8.1.280.0180.00425.92
8.1.270.0040.01423.89
8.1.260.0040.00428.09
8.1.250.0070.00028.09
8.1.240.0090.00019.46
8.1.230.0080.00417.76
8.1.220.0000.00917.74
8.1.210.0080.00018.77
8.1.200.0030.00717.48
8.1.190.0060.00317.48
8.1.180.0000.00818.10
8.1.170.0030.00618.61
8.1.160.0000.00719.06
8.1.150.0060.00318.86
8.1.140.0050.00319.61
8.1.130.0050.00217.66
8.1.120.0070.00017.66
8.1.110.0040.00817.52
8.1.100.0040.00417.57
8.1.90.0070.00017.48
8.1.80.0040.00417.68
8.1.70.0000.00717.59
8.1.60.0080.00017.78
8.1.50.0050.00317.60
8.1.40.0030.00517.56
8.1.30.0040.00417.75
8.1.20.0060.00317.79
8.1.10.0000.00817.70
8.1.00.0040.00417.56
8.0.300.0030.00618.77
8.0.290.0060.00317.13
8.0.280.0000.00718.39
8.0.270.0000.00717.21
8.0.260.0000.01017.22
8.0.250.0030.00317.16
8.0.240.0040.00417.05
8.0.230.0070.00017.14
8.0.220.0040.00417.13
8.0.210.0060.00317.15
8.0.200.0050.00317.17
8.0.190.0040.00417.21
8.0.180.0040.00417.02
8.0.170.0080.00017.18
8.0.160.0040.00417.08
8.0.150.0000.00817.05
8.0.140.0040.00417.01
8.0.130.0000.00813.55
8.0.120.0000.00816.98
8.0.110.0040.00417.09
8.0.100.0000.00717.18
8.0.90.0070.00017.02
8.0.80.0080.00817.15
8.0.70.0020.00517.14
8.0.60.0000.00716.91
8.0.50.0050.00216.95
8.0.30.0090.00917.36
8.0.20.0090.01017.40
8.0.10.0070.00017.21
8.0.00.0100.00717.01
7.4.330.0000.00615.08
7.4.320.0040.00416.88
7.4.300.0030.00316.70
7.4.290.0000.00716.65
7.4.280.0050.00316.64
7.4.270.0030.00316.81
7.4.260.0050.00616.63
7.4.250.0060.00316.61
7.4.240.0070.00016.72
7.4.230.0080.00016.76
7.4.220.0130.01016.89
7.4.210.0100.01016.82
7.4.200.0030.00516.80
7.4.160.0080.00816.82
7.4.150.0090.00917.40
7.4.140.0080.00917.86
7.4.130.0110.01016.66
7.4.120.0130.00716.79
7.4.110.0060.01016.57
7.4.100.0090.00916.86
7.4.90.0070.01016.61
7.4.80.0000.01719.39
7.4.70.0060.01216.54
7.4.60.0090.01316.78
7.4.50.0070.00716.64
7.4.40.0220.00016.60
7.4.30.0090.00916.68
7.4.00.0050.01115.22
7.3.330.0060.00013.43
7.3.320.0030.00313.51
7.3.310.0080.00016.58
7.3.300.0000.00716.46
7.3.290.0050.01016.52
7.3.280.0040.01216.54
7.3.270.0070.01517.40
7.3.260.0070.01116.77
7.3.250.0140.00716.61
7.3.240.0110.01216.55
7.3.230.0100.00616.78
7.3.210.0060.01116.66
7.3.200.0100.00716.60
7.3.190.0130.01016.72
7.3.180.0120.00416.49
7.3.170.0080.00816.73
7.3.160.0120.00916.79
7.3.120.0070.01115.04
7.3.110.0100.00715.03
7.3.100.0000.01414.90
7.3.90.0030.00915.11
7.3.80.0100.00715.23
7.3.70.0070.00714.96
7.3.60.0070.00415.04
7.3.50.0000.00914.96
7.3.40.0090.00615.14
7.3.30.0040.00715.08
7.3.20.0080.00516.67
7.3.10.0110.00416.97
7.3.00.0080.00316.90
7.2.330.0100.00716.84
7.2.320.0030.02116.72
7.2.310.0110.00716.86
7.2.300.0030.01216.80
7.2.290.0050.01416.89
7.2.250.0090.00915.20
7.2.240.0070.01315.31
7.2.230.0090.00615.06
7.2.220.0120.00315.39
7.2.210.0070.00715.14
7.2.200.0000.01015.07
7.2.190.0060.00915.40
7.2.180.0070.00315.30
7.2.170.0040.00814.92
7.2.60.0060.00916.95
7.2.00.0100.00619.61
7.1.330.0030.01116.15
7.1.320.0030.01016.06
7.1.310.0070.00315.88
7.1.300.0030.01215.75
7.1.290.0060.00616.12
7.1.280.0100.00316.11
7.1.270.0040.01215.56
7.1.260.0080.00415.79
7.1.200.0070.00715.95
7.1.100.0550.01316.17
7.1.70.0000.00817.05
7.1.60.0100.01019.90
7.1.50.0190.00616.80
7.1.00.0070.07322.46
7.0.200.0310.00615.10
7.0.70.0500.06019.98
7.0.60.0570.05720.04
7.0.50.0670.07020.33
7.0.40.0370.06720.39
7.0.30.0630.08020.40
7.0.20.0670.07020.34
7.0.10.0530.06320.45
7.0.00.0470.06720.40
5.6.280.0100.07021.15
5.6.220.0400.06020.93
5.6.210.0470.05720.63
5.6.200.0470.06321.22
5.6.190.0400.06721.16
5.6.180.0670.05721.20
5.6.170.0470.06021.25
5.6.160.0470.05321.16
5.6.150.0500.06721.31
5.6.140.0570.05721.16
5.6.130.0570.06321.14
5.6.120.0170.08021.30
5.6.110.0330.08021.32
5.6.100.0530.04721.29
5.6.90.0400.06321.21
5.6.80.0530.05020.61
5.6.70.0330.06720.54
5.6.60.0370.05320.58
5.6.50.0630.05720.68
5.6.40.0430.06320.64
5.6.30.0370.06020.51
5.6.20.0300.06020.57
5.6.10.0370.05720.59
5.6.00.0300.06320.48
5.5.360.0530.05020.54
5.5.350.0570.06020.58
5.5.340.0370.06020.97
5.5.330.0500.05320.96
5.5.320.0470.08020.96
5.5.310.0530.06020.99
5.5.300.0570.05721.05
5.5.290.0430.06021.05
5.5.280.0170.07021.08
5.5.270.0430.06021.05
5.5.260.0230.07721.05
5.5.250.0400.06020.88
5.5.240.0600.06020.40
5.5.230.0370.06020.44
5.5.220.0500.04320.37
5.5.210.0230.06720.45
5.5.200.0430.06020.32
5.5.190.0470.04720.19
5.5.180.0470.05020.19
5.5.160.0470.06320.26
5.5.150.0430.06020.31
5.5.140.0370.05720.45
5.5.130.0430.04720.37
5.5.120.0370.05020.43
5.5.110.0300.05720.44
5.5.100.0430.06320.14
5.5.90.0330.05020.36
5.5.80.0330.05020.27
5.5.70.0300.05720.27
5.5.60.0400.04320.28
5.5.50.0430.05320.36
5.5.40.0570.06320.22
5.5.30.0300.05720.32
5.5.20.0330.06020.39
5.5.10.0500.07020.25
5.5.00.0400.06720.25

preferences:
42.43 ms | 401 KiB | 5 Q