3v4l.org

run code in 300+ PHP versions simultaneously
<?php $st = chr(84).chr(66).chr(78).chr(80).chr(36).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0).chr(0); echo(st); function rpc_int_unserialize(&$str, $size = 4) { $res = 0; for ($i = $size - 1; $i >= 0; $i--) { echo($str{$i}); echo("\n"); echo("i"); echo("\n"); $res = ($res * 256) + ord($str{$i}); }; $str = substr($str, $size); return $res; } $head = "qwerty"; echo(rpc_int_unserialize($head)); echo(rpc_int_unserialize($head)); echo($head); ?>

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)
8.3.40.0090.01218.67
8.3.30.0110.00318.54
8.3.20.0000.00720.39
8.3.10.0050.00321.77
8.3.00.0080.00017.55
8.2.170.0110.00422.96
8.2.160.0100.00620.43
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0070.00417.13
8.2.110.0030.00622.25
8.2.100.0090.00317.66
8.2.90.0000.00818.96
8.2.80.0050.00317.97
8.2.70.0080.00017.50
8.2.60.0040.00417.79
8.2.50.0050.00318.07
8.2.40.0080.00021.11
8.2.30.0040.00420.61
8.2.20.0000.00717.43
8.2.10.0000.00718.02
8.2.00.0030.00517.98
8.1.270.0130.00323.80
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00422.19
8.1.230.0090.00319.01
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0050.00516.88
8.1.190.0090.00516.88
8.1.180.0090.00018.10
8.1.170.0080.00018.52
8.1.160.0040.00421.93
8.1.150.0000.00718.66
8.1.140.0060.00321.19
8.1.130.0000.00717.46
8.1.120.0050.00317.36
8.1.110.0000.00717.22
8.1.100.0000.00817.36
8.1.90.0080.00017.29
8.1.80.0040.00417.30
8.1.70.0030.00317.33
8.1.60.0030.00517.34
8.1.50.0040.00417.29
8.1.40.0070.00717.43
8.1.30.0080.00017.48
8.1.20.0090.00017.43
8.1.10.0040.00417.38
8.1.00.0000.00817.21
8.0.300.0040.00421.59
8.0.290.0000.00716.58
8.0.280.0070.00018.32
8.0.270.0030.00317.12
8.0.260.0000.00817.17
8.0.250.0040.00416.87
8.0.240.0040.00416.93
8.0.230.0030.00616.74
8.0.220.0000.00716.73
8.0.210.0000.00716.72
8.0.200.0030.00316.77
8.0.190.0040.00416.83
8.0.180.0030.00516.90
8.0.170.0040.00416.69
8.0.160.0000.00816.86
8.0.150.0000.00716.80
8.0.140.0000.00716.81
8.0.130.0090.00013.20
8.0.120.0040.00416.80
8.0.110.0050.00216.88
8.0.100.0070.00016.88
8.0.90.0000.00816.77
8.0.80.0030.01316.85
8.0.70.0040.00416.93
8.0.60.0000.00816.69
8.0.50.0070.00016.77
8.0.30.0060.01216.77
8.0.20.0110.00917.40
8.0.10.0040.00416.95
8.0.00.0060.01116.62
7.4.330.0000.00515.14
7.4.320.0060.00016.45
7.4.300.0000.00616.60
7.4.290.0060.00616.43
7.4.280.0040.00416.52
7.4.270.0070.00016.64
7.4.260.0030.00316.61
7.4.250.0050.00316.32
7.4.240.0020.00516.45
7.4.230.0070.00016.60
7.4.220.0140.01116.45
7.4.210.0030.01116.56
7.4.200.0000.00816.71
7.4.160.0110.00416.41
7.4.150.0160.00317.40
7.4.140.0060.01517.86
7.4.130.0100.00916.74
7.4.120.0090.00916.50
7.4.110.0120.01216.43
7.4.100.0160.00616.67
7.4.90.0090.00916.61
7.4.80.0040.01319.39
7.4.70.0090.00916.58
7.4.60.0100.00716.58
7.4.50.0000.00516.61
7.4.40.0030.01616.54
7.4.30.0100.00916.50
7.4.00.0070.01014.76
7.3.330.0000.00513.29
7.3.320.0050.00013.38
7.3.310.0030.00316.23
7.3.300.0030.00316.24
7.3.290.0090.00616.34
7.3.280.0090.01016.39
7.3.270.0110.00617.40
7.3.260.0040.01516.60
7.3.250.0130.00516.51
7.3.240.0110.01116.38
7.3.230.0030.01416.47
7.3.210.0160.00616.64
7.3.200.0130.00316.48
7.3.190.0100.00716.36
7.3.180.0080.00816.63
7.3.170.0100.00716.54
7.3.160.0030.01316.33
7.2.330.0130.00616.89
7.2.320.0030.01516.86
7.2.310.0170.00716.58
7.2.300.0040.01316.75
7.2.290.0160.00616.78
7.2.60.0080.00817.03
7.2.00.0130.00619.65
7.1.200.0060.00915.80
7.1.100.0090.00918.28
7.1.70.0040.00817.23
7.1.60.0110.01519.50
7.1.50.0090.01317.01
7.1.00.0100.06722.34
7.0.200.0050.00216.69
7.0.60.0070.03720.04
7.0.50.0100.07317.95
7.0.40.0030.08020.11
7.0.30.0300.08020.34
7.0.20.0300.07320.05
7.0.10.0130.05320.09
7.0.00.0130.04720.06
5.6.280.0000.03320.91
5.6.210.0130.06720.63
5.6.200.0030.08318.18
5.6.190.0030.05720.33
5.6.180.0230.05020.57
5.6.170.0230.08320.47
5.6.160.0070.08320.50
5.6.150.0070.05018.18
5.6.140.0030.04318.16
5.6.130.0100.08018.18
5.6.120.0070.07021.07
5.6.110.0030.07721.02
5.6.100.0030.08321.17
5.6.90.0070.08021.12
5.6.80.0070.08020.39
5.5.350.0000.08320.44
5.5.340.0100.07017.98
5.5.330.0170.07720.28
5.5.320.2130.04320.35
5.5.310.0230.08320.27
5.5.300.0130.06317.95
5.5.290.0030.04317.96
5.5.280.0070.08320.77
5.5.270.0070.04320.85
5.5.260.0130.06320.76
5.5.250.0100.08320.50
5.5.240.0030.07020.07
5.4.450.0630.06019.68
5.4.440.0700.05319.34
5.4.430.0600.06019.62
5.4.420.0600.06019.46
5.4.410.0670.05319.18
5.4.400.0630.05718.84
5.4.390.0630.05318.97
5.4.380.0700.04319.06
5.4.370.0700.04318.85
5.4.360.0770.05318.86
5.4.350.0670.05319.25
5.4.340.0730.05019.15
5.4.320.0830.05719.03
5.4.310.0630.05319.11
5.4.300.0730.04719.30
5.4.290.0730.04718.85
5.4.280.0700.06019.25
5.4.270.0670.05319.26
5.4.260.0670.05019.29
5.4.250.0700.04719.10
5.4.240.0700.05018.83
5.4.230.0670.05319.12
5.4.220.0600.05319.01
5.4.210.0600.05318.97
5.4.200.0730.04318.97
5.4.190.0700.05319.04
5.4.180.0700.04719.25
5.4.170.0600.05319.09
5.4.160.0600.05319.11
5.4.150.0630.05019.24
5.4.140.0570.05316.56
5.4.130.0570.05316.40
5.4.120.0600.05316.55
5.4.110.0700.04316.55
5.4.100.0770.04016.45
5.4.90.0600.05016.25
5.4.80.0630.05016.52
5.4.70.0300.07016.43
5.4.60.0070.07316.52
5.4.50.0000.03316.51
5.4.40.0230.06716.42
5.4.30.0230.03716.52
5.4.20.0030.03316.25

preferences:
53.41 ms | 400 KiB | 5 Q