3v4l.org

run code in 300+ PHP versions simultaneously
<?php global $aHash; $i=0;$tmp=""; while($i<10000){$tmp.='a';++$i;} $aHash=array_fill(100000000000000000000000, 100, $tmp); unset($i, $tmp); Test2_3(); Test2_End(); function Test2_3()  {     global $aHash; $t = microtime(true);     $key = array_keys($aHash);     $size = sizeOf($key);     for ($i=0;$i<$size;$i++)  $aHash[$key[$i]].="a";  return (microtime(true) - $t); } function Test2_End()  {     global $aHash; unset($aHash); } ?>

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)
5.4.310.0050.04012.50
5.4.300.0090.04112.50
5.4.290.0060.03712.50
5.4.280.0060.03512.39
5.4.270.0080.03512.39
5.4.260.0050.03812.39
5.4.250.0100.03412.39
5.4.240.0050.03812.39
5.4.230.0080.03612.39
5.4.220.0080.04312.38
5.4.210.0080.03312.39
5.4.200.0060.04012.38
5.4.190.0070.03912.38
5.4.180.0100.03112.38
5.4.170.0060.03512.39
5.4.160.0040.04212.38
5.4.150.0060.03712.38
5.4.140.0080.03612.07
5.4.130.0110.03412.05
5.4.120.0050.03612.02
5.4.110.0060.03612.01
5.4.100.0080.03512.01
5.4.90.0100.04312.01
5.4.80.0060.04112.01
5.4.70.0080.03712.00
5.4.60.0040.03712.00
5.4.50.0060.03712.01
5.4.40.0060.03412.00
5.4.30.0090.03411.99
5.4.20.0070.03511.98
5.4.10.0040.03711.99
5.4.00.0060.03711.48
5.3.280.0060.04012.71
5.3.270.0070.04312.72
5.3.260.0100.03712.72
5.3.250.0060.03712.72
5.3.240.0090.03412.72
5.3.230.0070.03712.71
5.3.220.0040.03912.68
5.3.210.0060.04412.68
5.3.200.0080.03712.68
5.3.190.0100.03612.68
5.3.180.0060.04312.68
5.3.170.0070.04112.67
5.3.160.0060.03912.67
5.3.150.0070.04112.68
5.3.140.0050.03712.66
5.3.130.0060.04112.66
5.3.120.0080.04412.66
5.3.110.0070.04112.66
5.3.100.0060.03712.12
5.3.90.0100.03812.08
5.3.80.0110.04012.07
5.3.70.0050.03712.08
5.3.60.0040.03912.06
5.3.50.0050.03712.00
5.3.40.0060.03712.00
5.3.30.0110.03411.95
5.3.20.0080.03511.73
5.3.10.0070.03511.70
5.3.00.0070.03511.68
5.2.170.0010.0369.19
5.2.160.0070.0309.19
5.2.150.0020.0399.18
5.2.140.0030.0339.18
5.2.130.0030.0329.14
5.2.120.0020.0349.14
5.2.110.0060.0359.15
5.2.100.0090.0319.14
5.2.90.0090.0259.14
5.2.80.0060.0289.14
5.2.70.0060.0289.14
5.2.60.0040.0309.09
5.2.50.0060.0289.06
5.2.40.0030.0309.04
5.2.30.0040.0319.01
5.2.20.0100.0349.00
5.2.10.0060.0278.93
5.2.00.0020.0328.79
5.1.60.0070.0218.07
5.1.50.0030.0268.07
5.1.40.0060.0238.04
5.1.30.0080.0288.40
5.1.20.0080.0288.42
5.1.10.0070.0278.14
5.1.00.0080.0298.15
5.0.50.0030.0216.63
5.0.40.0070.0166.49
5.0.30.0070.0306.29
5.0.20.0040.0196.29
5.0.10.0040.0196.27
5.0.00.0070.0326.26
4.4.90.0030.0154.78
4.4.80.0040.0154.76
4.4.70.0040.0184.75
4.4.60.0040.0144.75
4.4.50.0040.0154.77
4.4.40.0030.0314.71
4.4.30.0030.0154.76
4.4.20.0030.0184.85
4.4.10.0080.0174.85
4.4.00.0020.0264.76
4.3.110.0030.0164.67
4.3.100.0040.0134.67
4.3.90.0020.0154.63
4.3.80.0040.0294.58
4.3.70.0060.0174.63
4.3.60.0070.0154.62
4.3.50.0040.0184.63
4.3.40.0030.0354.54
4.3.30.0020.0163.31
4.3.20.0020.0153.29
4.3.10.0020.0203.25
4.3.00.0030.01715.90

preferences:
139.85 ms | 1398 KiB | 7 Q