3v4l.org

run code in 300+ PHP versions simultaneously
<?php function RandomString() { $characters = ’0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ’; $randstring = ''; for ($i = 0; $i < 10; $i++) { $randstring. = $characters[rand(0, strlen($characters))]; } return $randstring; } echo RandomString();

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)
5.4.350.0130.06019.07
5.4.340.0040.03912.03
5.4.320.0060.03512.52
5.4.310.0070.04012.52
5.4.300.0070.04612.52
5.4.290.0060.04512.51
5.4.280.0030.04012.41
5.4.270.0040.03912.41
5.4.260.0030.04012.41
5.4.250.0060.03712.41
5.4.240.0080.03412.41
5.4.230.0050.03912.40
5.4.220.0060.03612.40
5.4.210.0060.03612.40
5.4.200.0070.03712.40
5.4.190.0050.03612.40
5.4.180.0070.03612.40
5.4.170.0070.03512.40
5.4.160.0050.03612.40
5.4.150.0070.03412.39
5.4.140.0060.03812.09
5.4.130.0070.03512.07
5.4.120.0060.03612.03
5.4.110.0080.04012.03
5.4.100.0090.03512.03
5.4.90.0050.04012.04
5.4.80.0100.03612.03
5.4.70.0080.05012.03
5.4.60.0060.05012.02
5.4.50.0070.04912.02
5.4.40.0080.04512.01
5.4.30.0060.03612.01
5.4.20.0080.03612.00
5.4.10.0070.04012.01
5.4.00.0080.03811.51
5.3.290.0060.04012.80
5.3.280.0060.03912.70
5.3.270.0040.04212.72
5.3.260.0060.04112.72
5.3.250.0080.03512.72
5.3.240.0050.03912.71
5.3.230.0060.03812.71
5.3.220.0110.03712.68
5.3.210.0100.03912.68
5.3.200.0070.03912.68
5.3.190.0090.03712.68
5.3.180.0090.03812.68
5.3.170.0040.04612.67
5.3.160.0040.04212.67
5.3.150.0060.04112.67
5.3.140.0030.04112.66
5.3.130.0060.03812.66
5.3.120.0040.04012.66
5.3.110.0080.03912.66
5.3.100.0090.04812.13
5.3.90.0060.05012.11
5.3.80.0070.03712.09
5.3.70.0070.03512.10
5.3.60.0080.03812.08
5.3.50.0030.04112.02
5.3.40.0070.04012.02
5.3.30.0040.04011.98
5.3.20.0040.05011.76
5.3.10.0060.03711.74
5.3.00.0070.03811.72
5.2.170.0060.0319.22
5.2.160.0080.0369.21
5.2.150.0020.0339.21
5.2.140.0060.0309.21
5.2.130.0030.0319.18
5.2.120.0050.0299.18
5.2.110.0040.0309.18
5.2.100.0050.0299.18
5.2.90.0040.0309.18
5.2.80.0030.0329.17
5.2.70.0050.0349.17
5.2.60.0070.0279.13
5.2.50.0040.0309.09
5.2.40.0050.0299.07
5.2.30.0040.0449.04
5.2.20.0050.0389.04
5.2.10.0040.0348.95
5.2.00.0020.0318.81
5.1.60.0040.0238.09
5.1.50.0060.0268.09
5.1.40.0070.0248.07
5.1.30.0040.0278.42
5.1.20.0060.0258.43
5.1.10.0060.0238.16
5.1.00.0060.0268.17
5.0.50.0040.0206.64
5.0.40.0050.0186.50
5.0.30.0030.0316.31
5.0.20.0070.0166.29
5.0.10.0060.0206.26
5.0.00.0030.0346.25
4.4.90.0040.0194.78
4.4.80.0040.0324.75
4.4.70.0050.0184.75
4.4.60.0030.0184.75
4.4.50.0030.0174.77
4.4.40.0010.0294.71
4.4.30.0050.0174.76
4.4.20.0090.0164.84
4.4.10.0090.0164.85
4.4.00.0030.0314.76
4.3.110.0040.0184.67
4.3.100.0050.0144.66
4.3.90.0060.0134.64
4.3.80.0030.0294.59
4.3.70.0020.0154.63
4.3.60.0050.0124.63
4.3.50.0030.0154.63
4.3.40.0070.0194.54
4.3.30.0040.0143.30
4.3.20.0080.0113.28
4.3.10.0020.0183.24
4.3.00.0100.0236.95

preferences:
143.88 ms | 1394 KiB | 7 Q