3v4l.org

run code in 300+ PHP versions simultaneously
<?php for($i = 0; $i < 256; ++$i){ for($k = 0; $k < 256; ++$k){ $z = sprintf("%%%08x%%08x", $i, $k); echo $z; $x = mb_strtolower(urldecode($z)); if($x=="'"){ echo $z."\n"; } } }

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)
8.3.60.0240.00318.05
8.3.50.0090.00916.22
8.3.40.0090.01218.42
8.3.30.0150.00918.50
8.3.20.0070.00321.82
8.3.10.0120.00920.43
8.3.00.0130.00019.38
8.2.180.0210.00618.13
8.2.170.0180.00322.96
8.2.160.0190.00620.24
8.2.150.0070.01324.18
8.2.140.0080.00324.66
8.2.130.0080.00318.03
8.2.120.0040.00826.35
8.2.110.0030.00922.31
8.2.100.0080.00817.78
8.2.90.0030.00618.09
8.2.80.0100.00017.97
8.2.70.0030.00717.80
8.2.60.0030.00718.03
8.2.50.0100.00018.10
8.2.40.0030.01019.34
8.2.30.0000.00919.22
8.2.20.0110.00018.11
8.2.10.0060.00319.54
8.2.00.0030.00618.05
8.1.280.0240.01025.92
8.1.270.0070.00320.23
8.1.260.0100.01726.35
8.1.250.0080.00428.09
8.1.240.0070.00720.91
8.1.230.0120.00320.91
8.1.220.0090.00017.78
8.1.210.0060.00318.94
8.1.200.0080.00317.36
8.1.190.0030.00717.23
8.1.180.0000.00918.10
8.1.170.0000.01018.66
8.1.160.0000.00918.88
8.1.150.0070.00318.92
8.1.140.0030.00619.05
8.1.130.0030.00620.24
8.1.120.0060.00317.46
8.1.110.0060.00317.60
8.1.100.0000.00917.59
8.1.90.0080.00317.46
8.1.80.0050.00517.61
8.1.70.0060.00317.49
8.1.60.0030.00617.69
8.1.50.0060.00317.54
8.1.40.0000.00917.68
8.1.30.0100.00017.75
8.1.20.0040.00717.66
8.1.10.0000.01017.50
8.1.00.0050.00517.56
8.0.300.0050.00519.97
8.0.290.0030.00716.63
8.0.280.0000.00918.42
8.0.270.0060.00317.15
8.0.260.0000.00918.48
8.0.250.0050.00516.79
8.0.240.0130.00016.93
8.0.230.0040.00416.81
8.0.220.0060.00316.83
8.0.210.0000.00916.88
8.0.200.0000.00916.95
8.0.190.0060.00316.77
8.0.180.0030.00616.74
8.0.170.0090.00316.85
8.0.160.0090.00016.88
8.0.150.0070.00316.80
8.0.140.0030.00616.76
8.0.130.0040.00413.30
8.0.120.0080.00416.79
8.0.110.0000.00916.82
8.0.100.0030.00616.74
8.0.90.0030.00716.81
8.0.80.0170.01716.81
8.0.70.0000.00916.63
8.0.60.0000.00916.82
8.0.50.0030.00716.70
8.0.30.0180.01416.92
8.0.20.0160.02017.00
8.0.10.0060.00316.91
8.0.00.0220.02316.74
7.4.330.0040.00415.55
7.4.320.0030.00616.37
7.4.300.0090.00016.34
7.4.290.0060.00316.54
7.4.280.0000.00916.54
7.4.270.0030.00616.54
7.4.260.0040.00716.52
7.4.250.0000.00916.46
7.4.240.0040.00416.46
7.4.230.0030.00616.33
7.4.220.0120.00016.55
7.4.210.0150.01116.49
7.4.200.0090.00016.55
7.4.160.0200.01016.38
7.4.140.0290.01117.86
7.4.130.0140.01816.68
7.4.120.0250.02516.32
7.4.110.0250.02016.39
7.4.100.0100.02116.44
7.4.90.0090.02416.29
7.4.80.0130.01319.39
7.4.70.0120.01716.51
7.4.60.0070.02116.37
7.4.50.0100.01316.33
7.4.40.0200.01416.39
7.4.00.0070.01714.86
7.3.330.0030.00513.24
7.3.320.0040.00413.16
7.3.310.0030.00616.23
7.3.300.0060.00316.19
7.3.290.0090.00016.25
7.3.280.0110.02116.17
7.3.260.0260.01916.32
7.3.240.0250.01916.32
7.3.230.0170.01416.17
7.3.210.0220.01116.42
7.3.200.0210.00916.45
7.3.190.0160.01316.46
7.3.180.0080.01916.24
7.3.170.0310.01516.18
7.3.160.0130.01516.25
7.3.20.0260.00714.67
7.3.10.3480.02314.57
7.3.00.0230.00714.82
7.2.330.0240.03016.44
7.2.320.0260.02616.36
7.2.310.0310.03416.50
7.2.300.0360.01616.64
7.2.290.0200.03116.71
7.2.150.0150.02215.20
7.2.140.0390.02215.16
7.2.130.0210.02114.73
7.2.120.3320.03314.95
7.2.110.3220.01015.00
7.2.100.3160.02314.86
7.2.90.2720.01314.60
7.2.80.2670.00714.83
7.2.70.2820.01914.79
7.2.60.3250.00714.73
7.2.50.2560.02314.63
7.2.40.2910.01414.84
7.2.30.3360.02315.16
7.2.20.2790.03614.77
7.2.10.3060.01315.09
7.2.00.3020.02014.70
7.1.250.0170.01214.11

preferences:
67.98 ms | 401 KiB | 5 Q