3v4l.org

run code in 300+ PHP versions simultaneously
<?php mb_regex_encoding('SJIS'); $string = "my number is 63735"; $pattern = "63735"; $replacement = mb_convert_encoding(pack('n', "63735"), "SJIS", "ASCII"); var_dump(bin2hex($replacement)); //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)
8.3.60.0140.00716.75
8.3.50.0070.00716.46
8.3.40.0110.01118.67
8.3.30.0100.01018.54
8.3.20.0070.00020.73
8.3.10.0000.00823.78
8.3.00.0060.00321.83
8.2.180.0110.00718.38
8.2.170.0000.01422.96
8.2.160.0070.01122.32
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0070.00026.16
8.2.120.0040.00426.16
8.2.110.0060.00321.13
8.2.100.0110.00017.91
8.2.90.0030.00517.84
8.2.80.0050.00318.16
8.2.70.0050.00317.88
8.2.60.0040.00417.63
8.2.50.0030.00517.88
8.2.40.0050.00218.22
8.2.30.0000.00719.60
8.2.20.0050.00218.16
8.2.10.0040.00419.50
8.2.00.0080.00019.41
8.1.280.0080.00825.92
8.1.270.0040.00420.82
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00623.97
8.1.230.0000.01220.97
8.1.220.0000.00817.78
8.1.210.0000.00819.35
8.1.200.0040.00417.48
8.1.190.0080.00017.36
8.1.180.0040.00418.10
8.1.170.0050.00318.79
8.1.160.0050.00219.09
8.1.150.0000.00719.07
8.1.140.0040.00420.86
8.1.130.0000.00722.12
8.1.120.0000.00717.57
8.1.110.0040.00417.66
8.1.100.0020.00517.57
8.1.90.0000.00717.59
8.1.80.0080.00017.63
8.1.70.0030.00317.61
8.1.60.0030.00617.72
8.1.50.0000.00817.77
8.1.40.0080.00017.66
8.1.30.0040.00417.82
8.1.20.0000.00917.89
8.1.10.0080.00017.72
8.1.00.0040.00417.61
8.0.300.0000.00720.10
8.0.290.0040.00416.75
8.0.280.0000.00818.56
8.0.270.0070.00018.12
8.0.260.0000.00720.09
8.0.250.0030.00317.08
8.0.240.0000.00716.98
8.0.230.0000.00717.02
8.0.220.0070.00017.05
8.0.210.0000.00717.01
8.0.200.0020.00517.11
8.0.190.0000.00817.00
8.0.180.0000.00817.03
8.0.170.0040.00416.89
8.0.160.0040.00417.00
8.0.150.0050.00317.00
8.0.140.0030.00316.95
8.0.130.0000.00513.48
8.0.120.0070.00016.79
8.0.110.0000.00716.96
8.0.100.0000.00817.00
8.0.90.0000.00917.09
8.0.80.0050.01317.02
8.0.70.0070.00017.10
8.0.60.0000.00817.06
8.0.50.0040.00416.95
8.0.30.0110.00517.25
8.0.20.0120.00617.21
8.0.10.0050.00216.96
8.0.00.0100.00716.84
7.4.330.0030.00316.97
7.4.320.0060.00016.59
7.4.300.0060.00016.77
7.4.290.0000.00916.85
7.4.280.0040.00416.78
7.4.270.0000.00816.79
7.4.260.0030.00313.37
7.4.250.0040.00416.74
7.4.240.0040.00316.80
7.4.230.0000.00716.77
7.4.220.0000.00716.79
7.4.210.0090.01016.74
7.4.200.0000.00716.79
7.4.140.0150.00417.86
7.4.130.0130.00416.52
7.4.120.0110.00716.71
7.4.110.0070.01016.58
7.4.100.0110.00716.50
7.4.90.0060.01016.63
7.4.80.0030.01419.39
7.4.70.0160.00016.50
7.4.60.0110.00416.52
7.4.50.0120.00316.52
7.4.40.0130.00316.68
7.4.10.0150.00916.40
7.4.00.0070.01116.73
7.3.330.0000.00716.13
7.3.320.0040.00412.94
7.3.310.0070.00016.14
7.3.300.0030.00316.11
7.3.290.0140.00116.19
7.3.280.0070.01416.20
7.3.260.0100.00716.59
7.3.240.0090.00916.40
7.3.230.0110.00616.50
7.3.210.0060.01316.51
7.3.200.0030.01316.38
7.3.190.0070.01616.25
7.3.180.0100.00716.44
7.3.170.0060.01016.34
7.3.160.0080.00816.24
7.3.130.0150.00716.32
7.3.120.0060.01216.16
7.3.110.0070.01116.43
7.3.100.0080.00816.15
7.3.90.0060.00916.31
7.3.80.0000.01616.32
7.3.70.0060.00916.15
7.3.60.0090.00616.47
7.3.50.0060.00916.49
7.3.40.0090.00616.15
7.3.30.0060.00916.39
7.3.20.0120.00316.26
7.3.10.0070.01016.59
7.3.00.0130.00516.34
7.2.330.0110.01616.66
7.2.320.0140.00416.68
7.2.310.0040.01216.50
7.2.300.0090.00916.55
7.2.290.0100.00716.51
7.2.260.0110.01116.63
7.2.250.0070.01016.70
7.2.240.0070.01416.30
7.2.230.0030.01316.39
7.2.220.0040.01216.58
7.2.210.0120.00416.40
7.2.200.0090.00716.61
7.2.190.0100.00716.45
7.2.180.0030.01316.60
7.2.170.0000.01616.48
7.2.160.0060.00916.46
7.2.150.0080.00716.70
7.2.140.0150.00916.57
7.2.130.0090.00916.50
7.2.120.0030.01316.72
7.2.110.0080.00916.59
7.2.100.0090.00916.42
7.2.90.0120.00416.38
7.2.80.0030.01316.72
7.2.70.0100.00716.41
7.2.60.0000.01716.56
7.2.50.0030.01316.75
7.2.40.0100.00716.47
7.2.30.0140.00316.53
7.2.20.0130.00416.70
7.2.10.0000.01716.44
7.2.00.0080.01216.73

preferences:
82.13 ms | 400 KiB | 5 Q