3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Initial Configuration global $aHash; $i   = 0; $tmp = ''; while($i < 10000) {  $tmp .= 'a';  ++$i;} $aHash = array_fill(100000000000000000000000, 100, $tmp); unset($i, $tmp); // Test Source function Test2_3()  {     global $aHash;     /* The Test */     $t = microtime(true);     $key = array_keys($aHash);     $size = sizeOf($key);     for ($i=0; $i<$size; $i++)  $aHash[$key[$i]] .= "a";  return (microtime(true) - $t); } // Variable Clean-up 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)
5.4.310.0090.03612.49
5.4.300.0130.02912.50
5.4.290.0020.04112.49
5.4.280.0060.04112.39
5.4.270.0040.04112.39
5.4.260.0060.03712.39
5.4.250.0040.04012.39
5.4.240.0050.03812.39
5.4.230.0030.04112.38
5.4.220.0090.04312.38
5.4.210.0080.04312.38
5.4.200.0090.04412.38
5.4.190.0060.04712.38
5.4.180.0060.03912.38
5.4.170.0040.03712.39
5.4.160.0100.03912.38
5.4.150.0050.04312.38
5.4.140.0080.04612.07
5.4.130.0070.04512.05
5.4.120.0080.04112.02
5.4.110.0060.05012.02
5.4.100.0110.04212.01
5.4.90.0100.03412.01
5.4.80.0100.03212.01
5.4.70.0040.03912.00
5.4.60.0040.03912.01
5.4.50.0050.03812.00
5.4.40.0100.04711.99
5.4.30.0140.03611.99
5.4.20.0080.03911.99
5.4.10.0040.03811.99
5.4.00.0060.04811.48
5.3.280.0060.04312.70
5.3.270.0060.04012.72
5.3.260.0090.04012.72
5.3.250.0090.04212.72
5.3.240.0080.03712.72
5.3.230.0100.04812.71
5.3.220.0090.03412.68
5.3.210.0070.04012.68
5.3.200.0060.03912.68
5.3.190.0080.03512.68
5.3.180.0070.03512.67
5.3.170.0100.03212.67
5.3.160.0120.05012.67
5.3.150.0080.04212.67
5.3.140.0070.03912.66
5.3.130.0090.04912.66
5.3.120.0040.04212.65
5.3.110.0060.04012.66
5.3.100.0030.04112.12
5.3.90.0070.03612.08
5.3.80.0100.03312.07
5.3.70.0080.03912.07
5.3.60.0090.04512.06
5.3.50.0080.03812.00
5.3.40.0050.03812.00
5.3.30.0120.03711.96
5.3.20.0010.04211.73
5.3.10.0100.03811.70
5.3.00.0080.04211.68
5.2.170.0020.0459.18
5.2.160.0040.0309.18
5.2.150.0080.0409.18
5.2.140.0040.0329.18
5.2.130.0030.0319.13
5.2.120.0080.0319.14
5.2.110.0010.0329.15
5.2.100.0070.0289.14
5.2.90.0080.0429.14
5.2.80.0040.0319.14
5.2.70.0040.0359.14
5.2.60.0030.0339.09
5.2.50.0050.0389.06
5.2.40.0060.0279.04
5.2.30.0070.0369.02
5.2.20.0060.0279.00
5.2.10.0090.0288.92
5.2.00.0050.0308.78
5.1.60.0060.0308.07
5.1.50.0050.0308.07
5.1.40.0040.0288.05
5.1.30.0080.0298.40
5.1.20.0050.0268.42
5.1.10.0040.0318.14
5.1.00.0040.0268.14
5.0.50.0030.0306.63
5.0.40.0040.0236.48
5.0.30.0040.0316.29
5.0.20.0040.0206.27
5.0.10.0060.0226.25
5.0.00.0030.0386.23
4.4.90.0040.0244.78
4.4.80.0050.0144.75
4.4.70.0040.0144.75
4.4.60.0020.0194.76
4.4.50.0030.0154.77
4.4.40.0020.0254.71
4.4.30.0010.0174.76
4.4.20.0040.0154.85
4.4.10.0030.0164.85
4.4.00.0010.0274.76
4.3.110.0020.0164.67
4.3.100.0020.0154.67
4.3.90.0020.0164.64
4.3.80.0040.0324.58
4.3.70.0040.0194.63
4.3.60.0030.0144.63
4.3.50.0010.0174.63
4.3.40.0040.0234.53
4.3.30.0020.0163.28
4.3.20.0040.0133.26
4.3.10.0020.0153.22
4.3.00.0000.01715.90

preferences:
132.32 ms | 1394 KiB | 7 Q