3v4l.org

run code in 300+ PHP versions simultaneously
<?php global $array = array(); function foo() { global $array; $i = 0; while ($i < 100000) { $array[] = $i; $i++; } $key = 9999; $exists = array_key_exists($key, $array); if ($exists === true) echo 'exists'; else echo 'does not exist'; } foo();

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)
5.4.310.0030.04112.49
5.4.300.0070.03612.50
5.4.290.0090.03612.49
5.4.280.0090.03312.39
5.4.270.0070.03612.39
5.4.260.0030.04012.39
5.4.250.0070.03712.39
5.4.240.0100.03112.39
5.4.230.0080.03612.38
5.4.220.0030.03812.38
5.4.210.0040.03712.38
5.4.200.0060.04412.38
5.4.190.0070.04812.38
5.4.180.0060.03712.38
5.4.170.0070.03612.38
5.4.160.0050.03612.38
5.4.150.0050.04012.38
5.4.140.0050.04312.07
5.4.130.0070.04012.05
5.4.120.0030.03912.02
5.4.110.0050.03812.01
5.4.100.0030.03912.01
5.4.90.0060.03712.01
5.4.80.0080.03612.01
5.4.70.0040.03612.00
5.4.60.0060.03912.00
5.4.50.0060.04912.01
5.4.40.0070.04711.99
5.4.30.0080.04811.99
5.4.20.0110.03711.99
5.4.10.0090.04211.99
5.4.00.0050.04811.49
5.3.290.0080.03712.80
5.3.280.0030.03912.71
5.3.270.0060.03912.73
5.3.260.0090.03512.72
5.3.250.0080.03512.72
5.3.240.0060.03712.72
5.3.230.0030.04012.71
5.3.220.0030.04012.68
5.3.210.0080.04112.68
5.3.200.0060.03812.68
5.3.190.0040.04012.68
5.3.180.0070.05012.68
5.3.170.0040.05012.67
5.3.160.0070.03612.67
5.3.150.0030.04112.68
5.3.140.0030.04012.66
5.3.130.0080.05612.66
5.3.120.0080.04212.65
5.3.110.0070.05012.66
5.3.100.0060.03712.12
5.3.90.0060.04112.09
5.3.80.0060.03912.07
5.3.70.0050.04112.07
5.3.60.0120.04612.06
5.3.50.0060.04312.00
5.3.40.0050.03712.00
5.3.30.0050.03711.95
5.3.20.0070.03811.72
5.3.10.0090.03411.70
5.3.00.0060.03611.68
5.2.170.0060.0319.18
5.2.160.0050.0299.18
5.2.150.0060.0299.18
5.2.140.0010.0349.18
5.2.130.0020.0329.14
5.2.120.0030.0309.14
5.2.110.0030.0329.15
5.2.100.0030.0319.14
5.2.90.0060.0299.14
5.2.80.0050.0369.14
5.2.70.0040.0349.14
5.2.60.0100.0369.09
5.2.50.0050.0319.06
5.2.40.0020.0329.04
5.2.30.0060.0339.02
5.2.20.0020.0329.01
5.2.10.0060.0268.93
5.2.00.0050.0288.78
5.1.60.0020.0258.06
5.1.50.0010.0278.06
5.1.40.0050.0238.04
5.1.30.0030.0288.40
5.1.20.0060.0268.41
5.1.10.0030.0298.14
5.1.00.0060.0248.14
5.0.50.0050.0206.62
5.0.40.0020.0216.48
5.0.30.0020.0346.29
5.0.20.0050.0266.27
5.0.10.0080.0246.24
5.0.00.0050.0296.23
4.4.90.0020.0164.78
4.4.80.0000.0184.75
4.4.70.0030.0154.75
4.4.60.0040.0164.75
4.4.50.0060.0124.77
4.4.40.0030.0314.71
4.4.30.0050.0204.76
4.4.20.0020.0164.84
4.4.10.0030.0154.85
4.4.00.0070.0214.76
4.3.110.0020.0164.67
4.3.100.0030.0154.67
4.3.90.0030.0144.64
4.3.80.0050.0224.58
4.3.70.0060.0124.63
4.3.60.0030.0144.63
4.3.50.0020.0164.63
4.3.40.0050.0314.54
4.3.30.0010.0233.29
4.3.20.0010.0233.27
4.3.10.0030.0153.22
4.3.00.0100.0237.09

preferences:
133.57 ms | 1398 KiB | 7 Q