3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo preg_replace_callback("#%u([0-9A-F]{1,4})#i", create_function('$matches', 'return dec_to_utf8(hexdec($matches[1]));'), '%u01C0'); function dec_to_utf8($src) { $dest = ''; if($src < 0) { return false; } elseif($src <= 0x007f) { $dest .= chr($src); } elseif($src <= 0x07ff) { $dest .= chr(0xc0 | ($src >> 6)); $dest .= chr(0x80 | ($src & 0x003f)); } elseif($src <= 0xffff) { $dest .= chr(0xe0 | ($src >> 12)); $dest .= chr(0x80 | (($src >> 6) & 0x003f)); $dest .= chr(0x80 | ($src & 0x003f)); } elseif($src <= 0x10ffff) { $dest .= chr(0xf0 | ($src >> 18)); $dest .= chr(0x80 | (($src >> 12) & 0x3f)); $dest .= chr(0x80 | (($src >> 6) & 0x3f)); $dest .= chr(0x80 | ($src & 0x3f)); } else { // Out of range return false; } return $dest; }

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)
8.3.60.0120.00316.50
8.3.50.0100.00716.33
8.3.40.0070.00718.79
8.3.30.0040.01118.66
8.3.20.0000.00820.16
8.3.10.0040.00421.67
8.3.00.0000.00822.09
8.2.180.0140.00716.63
8.2.170.0000.01422.96
8.2.160.0040.01119.09
8.2.150.0000.00824.18
8.2.140.0070.00024.66
8.2.130.0070.00026.16
8.2.120.0050.00319.82
8.2.110.0100.00020.97
8.2.100.0110.00017.91
8.2.90.0040.00419.09
8.2.80.0040.00417.97
8.2.70.0080.00517.38
8.2.60.0000.00817.80
8.2.50.0000.00818.10
8.2.40.0000.00720.42
8.2.30.0040.00421.04
8.2.20.0030.00518.07
8.2.10.0040.00418.07
8.2.00.0040.00418.01
8.1.280.0080.01225.92
8.1.270.0070.00022.06
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.71
8.1.230.0040.00719.01
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0060.00316.98
8.1.190.0050.00317.22
8.1.180.0040.00418.10
8.1.170.0060.00318.50
8.1.160.0050.00219.03
8.1.150.0000.00720.42
8.1.140.0070.00019.48
8.1.130.0090.00018.71
8.1.120.0000.00717.32
8.1.110.0000.00817.22
8.1.100.0000.00817.30
8.1.90.0040.00417.36
8.1.80.0040.00417.40
8.1.70.0000.00717.32
8.1.60.0040.00417.52
8.1.50.0040.00417.42
8.1.40.0040.00417.36
8.1.30.0080.00017.50
8.1.20.0080.00017.64
8.1.10.0040.00417.56
8.1.00.0000.00717.33
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0040.00418.36
8.0.270.0040.00417.21
8.0.260.0030.00316.75
8.0.250.0040.00416.99
8.0.240.0000.00716.96
8.0.230.0040.00416.96
8.0.220.0000.00716.93
8.0.210.0040.00416.91
8.0.200.0030.00316.87
8.0.190.0030.00616.87
8.0.180.0030.00516.89
8.0.170.0000.00716.98
8.0.160.0030.00616.95
8.0.150.0030.00316.84
8.0.140.0040.00416.81
8.0.130.0050.00013.40
8.0.120.0000.00716.89
8.0.110.0040.00416.93
8.0.100.0000.00817.03
8.0.90.0030.00316.88
8.0.80.0120.01216.91
8.0.70.0040.00416.86
8.0.60.0040.00416.93
8.0.50.0050.00216.89
8.0.30.0140.00717.19
8.0.20.0100.01117.40
8.0.10.0000.01016.98
8.0.00.0090.00916.91
7.4.330.0050.00015.55
7.4.320.0030.00316.71
7.4.300.0030.00316.73
7.4.290.0000.00716.72
7.4.280.0000.00816.95
7.4.270.0000.00716.86
7.4.260.0030.00516.71
7.4.250.0080.00016.80
7.4.240.0080.00016.88
7.4.230.0040.00416.81
7.4.220.0040.01516.95
7.4.210.0090.01016.82
7.4.200.0000.00817.00
7.4.160.0050.01416.71
7.4.150.0070.01117.40
7.4.140.0080.01117.86
7.4.130.0130.01016.74
7.4.120.0150.00316.73
7.4.110.0130.00316.91
7.4.100.0060.01216.49
7.4.90.0130.01016.91
7.4.80.0100.00719.39
7.4.70.0120.00316.59
7.4.60.0080.00817.04
7.4.50.0030.01316.80
7.4.40.0120.00616.60
7.4.30.0140.00416.65
7.4.00.0120.00315.30
7.3.330.0050.00013.59
7.3.320.0000.00513.68
7.3.310.0040.00416.63
7.3.300.0000.00716.54
7.3.290.0070.00016.43
7.3.280.0100.00716.52
7.3.270.0090.00917.40
7.3.260.0110.00616.63
7.3.250.0120.00916.75
7.3.240.0120.00716.74
7.3.230.0130.00616.72
7.3.210.0100.00716.51
7.3.200.0060.01016.78
7.3.190.0110.01116.73
7.3.180.0140.00316.57
7.3.170.0090.00916.72
7.3.160.0140.00316.65
7.3.10.0110.00316.89
7.3.00.0030.00916.90
7.2.330.0150.00416.88
7.2.320.0060.01216.97
7.2.310.0080.01217.06
7.2.300.0140.00316.77
7.2.290.0140.00317.09
7.2.130.0100.00317.08
7.2.120.0080.00417.20
7.2.110.0030.01217.03
7.2.100.0070.00717.06
7.2.90.0000.01217.14
7.2.80.0040.00916.92
7.2.70.0070.00717.18
7.2.60.0160.00317.13
7.2.50.0070.00717.07
7.2.40.0030.00917.02
7.2.30.0000.01017.10
7.2.20.0060.00917.09
7.2.10.0030.01017.22
7.2.00.0000.00916.93
7.1.250.0080.00315.84
7.1.200.0080.00315.79
7.1.100.0070.00718.43
7.1.70.0130.01017.29
7.1.60.0380.01235.47
7.1.50.0260.01535.11
7.1.40.0270.01834.66
7.1.30.0290.01834.59
7.1.20.0280.01834.82
7.1.10.0190.00516.50
7.1.00.0130.00916.89
7.0.200.0090.01416.99
7.0.190.0040.01717.10
7.0.180.0170.01116.26
7.0.170.0090.01416.40
7.0.160.0070.01116.44
7.0.150.0030.02116.41
7.0.140.0050.01616.66
7.0.130.0090.01416.74
7.0.120.0170.00516.64
7.0.110.0050.01616.73
7.0.100.0130.00916.42
7.0.90.0130.01116.36
7.0.80.0060.01416.61
7.0.70.0090.01216.75
7.0.60.0110.01216.21
7.0.50.0060.01716.44
7.0.40.0060.01316.81
7.0.30.0180.00516.71
7.0.20.0060.01216.66
7.0.10.0030.01516.54
7.0.00.0030.01716.38

preferences:
62.31 ms | 400 KiB | 5 Q