3v4l.org

run code in 300+ PHP versions simultaneously
<?php mb_regex_encoding('SJIS'); $string = "my number is 63735"; $pattern = "63735"; $packed = pack('n', "63735"); //before convert to ASCII: f8f7 var_dump(bin2hex($packed)); $replacement = mb_convert_encoding($packed, "SJIS", "ASCII"); //after convert to ASCII: 3f8180 var_dump(bin2hex($replacement)); //after converting back to SJIS: var_dump(bin2hex(mb_convert_encoding($replacement, "UTF-8", "SJIS"))); //expected result: my number is �� //OK $new_string = mb_ereg_replace($pattern, $replacement, $string); //expected result: my new number is �� //but it returns NULL. $ret = mb_ereg_replace("number", "new number", $new_string); var_dump($ret); var_dump(mb_convert_encoding($ret, "UTF-8", "SJIS"));

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)
8.3.60.0070.01418.68
8.3.50.0060.00916.25
8.3.40.0110.00418.65
8.3.30.0090.00618.71
8.3.20.0040.00420.73
8.3.10.0040.00423.61
8.3.00.0070.00021.85
8.2.180.0090.00918.79
8.2.170.0070.01122.96
8.2.160.0070.00722.19
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0000.00726.16
8.2.120.0050.00326.16
8.2.110.0100.00722.45
8.2.100.0090.00617.91
8.2.90.0080.00017.75
8.2.80.0080.00018.99
8.2.70.0060.00317.88
8.2.60.0060.00618.18
8.2.50.0030.00518.07
8.2.40.0030.00618.34
8.2.30.0050.00319.61
8.2.20.0040.00418.24
8.2.10.0070.00019.38
8.2.00.0050.00319.45
8.1.280.0120.00925.92
8.1.270.0000.00920.86
8.1.260.0070.00026.35
8.1.250.0110.00328.09
8.1.240.0130.00720.76
8.1.230.0120.00017.89
8.1.220.0080.00017.77
8.1.210.0000.00818.77
8.1.200.0060.00617.35
8.1.190.0000.00717.35
8.1.180.0060.00318.10
8.1.170.0040.00418.96
8.1.160.0030.00619.11
8.1.150.0070.00019.12
8.1.140.0000.00822.74
8.1.130.0030.00322.20
8.1.120.0040.00417.54
8.1.110.0000.00717.65
8.1.100.0040.00417.59
8.1.90.0000.00717.61
8.1.80.0040.00417.70
8.1.70.0000.00717.68
8.1.60.0060.00317.69
8.1.50.0060.00317.70
8.1.40.0080.00417.61
8.1.30.0000.00817.87
8.1.20.0040.00417.75
8.1.10.0000.00817.64
8.1.00.0050.00317.64
8.0.300.0000.00820.55
8.0.290.0060.00316.75
8.0.280.0030.00518.62
8.0.270.0000.00718.14
8.0.260.0030.00320.12
8.0.250.0030.00317.08
8.0.240.0000.00817.11
8.0.230.0030.00317.05
8.0.220.0000.00716.98
8.0.210.0030.00317.04
8.0.200.0000.00717.04
8.0.190.0040.00417.07
8.0.180.0030.00517.05
8.0.170.0030.00517.09
8.0.160.0030.00516.92
8.0.150.0070.00016.96
8.0.140.0040.00417.02
8.0.130.0030.00313.43
8.0.120.0000.00816.98
8.0.110.0000.00817.03
8.0.100.0040.00416.90
8.0.90.0030.00616.93
8.0.80.0070.01216.96
8.0.70.0000.00716.99
8.0.60.0000.00716.82
8.0.50.0000.00816.82
8.0.30.0100.00817.25
8.0.20.0140.00817.09
8.0.10.0050.00217.24
8.0.00.0150.00317.11
7.4.330.0030.00316.87
7.4.320.0060.00016.73
7.4.300.0000.00716.77
7.4.290.0000.00816.71
7.4.280.0050.00316.64
7.4.270.0040.00416.70
7.4.260.0000.00513.45
7.4.250.0040.00416.78
7.4.240.0000.00716.73
7.4.230.0030.00316.64
7.4.220.0020.00516.82
7.4.210.0070.00816.71
7.4.200.0040.00416.86
7.4.130.0120.00916.59
7.4.120.0100.01016.58
7.4.110.0080.00816.74
7.4.100.0100.00716.47
7.4.90.0030.01316.69
7.4.80.0120.01119.39
7.4.70.0120.00416.64
7.4.60.0030.01516.68
7.4.50.0000.01516.58
7.4.40.0140.00316.43
7.4.10.0030.01216.32
7.4.00.0060.00916.66
7.3.330.0070.00016.25
7.3.320.0030.00313.05
7.3.310.0030.00316.26
7.3.300.0030.00316.20
7.3.290.0080.00716.19
7.3.280.0110.00716.12
7.3.260.0060.01216.16
7.3.240.0080.01016.36
7.3.230.0100.00916.42
7.3.210.0090.00916.41
7.3.200.0060.01016.25
7.3.190.0110.00716.16
7.3.180.0100.00716.41
7.3.170.0070.01016.45
7.3.160.0090.00916.30
7.3.130.0070.00816.35
7.3.120.0090.00616.46
7.3.110.0060.01116.28
7.3.100.0040.01216.11
7.3.90.0120.00316.27
7.3.80.0090.00916.30
7.3.70.0120.00316.34
7.3.60.0120.00416.34
7.3.50.0150.00016.24
7.3.40.0110.00416.20
7.3.30.0060.00916.09
7.3.20.0070.00716.21
7.3.10.0070.00716.12
7.3.00.0080.00816.13
7.2.330.0070.01716.50
7.2.320.0090.00916.53
7.2.310.0060.01016.29
7.2.300.0080.01116.35
7.2.290.0100.00716.57
7.2.260.0090.00616.39
7.2.250.0100.00716.37
7.2.240.0090.00616.50
7.2.230.0000.01616.65
7.2.220.0050.01016.46
7.2.210.0120.00316.48
7.2.200.0030.01216.52
7.2.190.0060.00916.55
7.2.180.0030.01216.44
7.2.170.0100.00616.59
7.2.160.0000.01516.57
7.2.150.0200.00916.43
7.2.140.0120.00616.47
7.2.130.0040.01316.62
7.2.120.0030.01316.60
7.2.110.0270.00616.47
7.2.100.0090.00616.47
7.2.90.0110.00516.63
7.2.80.0080.00816.48
7.2.70.0120.00616.58
7.2.60.0100.00716.54
7.2.50.0090.00916.57
7.2.40.0100.00716.66
7.2.30.0110.00416.61
7.2.20.0090.00616.69
7.2.10.0120.00316.59
7.2.00.0060.00916.69

preferences:
60.65 ms | 400 KiB | 5 Q