3v4l.org

run code in 300+ PHP versions simultaneously
<?php function rpc_str_serialize($val) { $len = strlen($val); if ($len < 255) { $rt = chr($len).$val; return $rt; } else { $rt =chr(255).rpc_int_serialize($len).$val; return $rt; } } echo(ord(rpc_str_serialize("momoqwertyuioasdfghjkl;zxcvbnm,.qwertgyhjuk")[0])); ?>

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)
8.3.70.0070.00716.50
8.3.60.0150.00616.38
8.3.50.0120.00821.12
8.3.40.0040.01818.97
8.3.30.0120.00318.73
8.3.20.0030.00620.14
8.3.10.0070.00021.90
8.3.00.0030.00518.00
8.2.180.0120.00618.26
8.2.170.0040.01122.96
8.2.160.0100.00320.46
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0000.00917.75
8.2.110.0060.00319.33
8.2.100.0160.00017.57
8.2.90.0040.00419.30
8.2.80.0050.00517.97
8.2.70.0050.00317.75
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0040.00421.01
8.2.30.0000.00720.70
8.2.20.0030.00517.65
8.2.10.0000.00718.08
8.2.00.0070.00017.95
8.1.280.0070.00725.92
8.1.270.0030.01523.79
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0090.00022.10
8.1.230.0070.00319.00
8.1.220.0000.00817.77
8.1.210.0040.00418.77
8.1.200.0060.00317.36
8.1.190.0030.00616.98
8.1.180.0040.00418.10
8.1.170.0080.00018.65
8.1.160.0050.00322.00
8.1.150.0040.00418.82
8.1.140.0050.00319.51
8.1.130.0050.00217.60
8.1.120.0040.00417.43
8.1.110.0000.00717.47
8.1.100.0000.00817.49
8.1.90.0080.00017.41
8.1.80.0000.00717.37
8.1.70.0040.00417.49
8.1.60.0040.00417.58
8.1.50.0040.00417.49
8.1.40.0000.01017.57
8.1.30.0050.00317.70
8.1.20.0100.00017.56
8.1.10.0000.00817.53
8.1.00.0080.00017.54
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0040.00418.55
8.0.270.0000.00717.23
8.0.260.0030.00317.19
8.0.250.0040.00416.94
8.0.240.0000.00716.97
8.0.230.0030.00316.99
8.0.220.0040.00416.84
8.0.210.0080.00016.95
8.0.200.0060.00016.96
8.0.190.0000.00816.94
8.0.180.0070.00016.87
8.0.170.0000.00816.81
8.0.160.0050.00317.00
8.0.150.0020.00516.97
8.0.140.0040.00416.87
8.0.130.0080.00013.29
8.0.120.0040.00416.84
8.0.110.0050.00216.88
8.0.100.0050.00216.88
8.0.90.0040.00416.78
8.0.80.0000.01716.82
8.0.70.0040.00416.87
8.0.60.0080.00016.88
8.0.50.0040.00416.91
8.0.30.0090.00916.91
8.0.20.0140.00517.40
8.0.10.0000.00716.93
8.0.00.0060.01216.78
7.4.330.0050.00015.08
7.4.320.0030.00316.46
7.4.300.0000.00716.42
7.4.290.0030.00916.54
7.4.280.0000.00916.53
7.4.270.0000.00716.62
7.4.260.0030.00316.68
7.4.250.0040.00416.59
7.4.240.0000.00816.56
7.4.230.0000.00616.27
7.4.220.0090.01016.55
7.4.210.0040.01216.42
7.4.200.0000.00716.48
7.4.160.0070.01116.75
7.4.150.0120.01217.40
7.4.140.0120.01417.86
7.4.130.0110.00616.54
7.4.120.0080.01016.57
7.4.110.0140.00416.64
7.4.100.0130.00916.56
7.4.90.0100.00716.54
7.4.80.0140.00319.39
7.4.70.0080.01616.35
7.4.60.0070.01016.32
7.4.50.0000.00516.26
7.4.40.0080.00816.45
7.4.30.0140.00816.50
7.4.00.0030.01414.79
7.3.330.0000.00513.39
7.3.320.0000.00613.38
7.3.310.0040.00416.36
7.3.300.0070.00016.32
7.3.290.0050.00916.38
7.3.280.0060.01416.35
7.3.270.0100.00617.40
7.3.260.0090.00916.40
7.3.250.0130.00516.44
7.3.240.0100.01116.54
7.3.230.0100.01316.39
7.3.210.0030.01416.53
7.3.200.0150.00616.45
7.3.190.0030.01316.27
7.3.180.0060.01016.65
7.3.170.0120.00316.65
7.3.160.0060.00916.44
7.2.330.0080.01116.86
7.2.320.0090.00916.78
7.2.310.0090.00916.80
7.2.300.0040.01116.80
7.2.290.0120.00616.75
7.2.60.0030.01016.98
7.2.00.0070.00419.34
7.1.200.0090.00315.68
7.1.100.0070.00718.27
7.1.70.0030.01017.09
7.1.60.0090.01519.50
7.1.50.0090.01216.68
7.1.00.0070.07322.36
7.0.200.0030.00516.68
7.0.60.0030.08019.95
7.0.50.0100.04017.95
7.0.40.0100.05020.11
7.0.30.0270.06320.32
7.0.20.0230.04020.35
7.0.10.0100.08020.14
7.0.00.0100.08020.25
5.6.280.0070.02720.82
5.6.210.0030.06320.48
5.6.200.0030.08318.29
5.6.190.0000.05020.62
5.6.180.0270.08020.58
5.6.170.0470.06020.54
5.6.160.0070.05720.44
5.6.150.0070.06718.28
5.6.140.0030.04018.23
5.6.130.0000.08718.21
5.6.120.0100.07320.93
5.6.110.0030.09020.89
5.6.100.0100.08321.00
5.6.90.0030.08721.00
5.6.80.0030.05320.29
5.5.350.0030.06320.41
5.5.340.0100.08018.05
5.5.330.0030.05320.13
5.5.320.3830.04320.42
5.5.310.0370.08020.27
5.5.300.0070.04318.03
5.5.290.0030.04017.91
5.5.280.0130.04320.88
5.5.270.0100.08020.73
5.5.260.0200.07020.66
5.5.250.0030.08320.64
5.5.240.0000.07720.24
5.4.450.0630.05719.31
5.4.440.0670.05719.55
5.4.430.0630.05719.31
5.4.420.0770.04019.12
5.4.410.0600.05719.21
5.4.400.0600.05719.27
5.4.390.0730.04318.98
5.4.380.0670.05019.00
5.4.370.0730.04719.01
5.4.360.0830.06319.15
5.4.350.0600.06318.83
5.4.340.0770.07718.82
5.4.320.0570.06018.89
5.4.310.0700.04719.26
5.4.300.0630.05319.00
5.4.290.0630.05718.97
5.4.280.0630.05319.05
5.4.270.0700.04719.05
5.4.260.0670.04718.98
5.4.250.0670.05019.23
5.4.240.0700.04719.04
5.4.230.0670.05019.13
5.4.220.0730.04719.16
5.4.210.0630.05318.96
5.4.200.0630.05018.88
5.4.190.0630.05019.21
5.4.180.0730.05018.82
5.4.170.0600.05719.19
5.4.160.0530.05719.20
5.4.150.0570.06018.98
5.4.140.0570.05716.44
5.4.130.0600.04316.41
5.4.120.0070.05016.47
5.4.110.0100.05316.56
5.4.100.0730.05016.24
5.4.90.0570.05016.54
5.4.80.0570.04016.22
5.4.70.0230.03716.52
5.4.60.0100.04316.34
5.4.50.0000.05016.51
5.4.40.0200.04716.43
5.4.30.0270.07016.16
5.4.20.0000.03316.16

preferences:
57.44 ms | 401 KiB | 5 Q