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); Test2_3(); Test2_End(); // 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)
5.4.310.0080.03512.49
5.4.300.0080.03412.50
5.4.290.0040.04012.50
5.4.280.0080.03412.39
5.4.270.0080.03412.39
5.4.260.0060.03812.39
5.4.250.0080.03912.39
5.4.240.0050.03812.39
5.4.230.0030.04012.38
5.4.220.0070.03512.38
5.4.210.0050.03612.38
5.4.200.0050.04512.38
5.4.190.0110.03212.38
5.4.180.0050.03812.38
5.4.170.0090.03412.39
5.4.160.0060.03512.38
5.4.150.0050.03712.38
5.4.140.0060.03712.07
5.4.130.0040.03712.05
5.4.120.0060.04612.02
5.4.110.0070.03612.01
5.4.100.0070.03812.01
5.4.90.0060.04712.02
5.4.80.0110.03912.01
5.4.70.0070.03812.01
5.4.60.0040.04212.01
5.4.50.0100.03312.00
5.4.40.0080.03412.00
5.4.30.0050.03711.99
5.4.20.0080.03311.98
5.4.10.0030.03811.99
5.4.00.0090.03411.48
5.3.280.0150.03812.71
5.3.270.0050.04012.73
5.3.260.0070.03812.71
5.3.250.0040.04112.72
5.3.240.0030.04112.72
5.3.230.0100.03812.71
5.3.220.0040.03912.68
5.3.210.0090.03612.68
5.3.200.0060.03612.68
5.3.190.0050.03812.67
5.3.180.0070.03512.67
5.3.170.0090.04312.67
5.3.160.0070.04712.67
5.3.150.0080.03512.67
5.3.140.0100.03912.66
5.3.130.0070.04412.66
5.3.120.0040.04012.66
5.3.110.0060.04012.66
5.3.100.0060.04012.12
5.3.90.0060.04412.08
5.3.80.0050.04212.07
5.3.70.0090.03512.08
5.3.60.0060.04012.06
5.3.50.0100.03512.00
5.3.40.0050.03712.00
5.3.30.0070.03711.95
5.3.20.0110.03011.72
5.3.10.0050.03611.70
5.3.00.0080.04311.68
5.2.170.0080.0309.18
5.2.160.0070.0309.19
5.2.150.0080.0289.19
5.2.140.0060.0319.18
5.2.130.0030.0339.14
5.2.120.0030.0339.14
5.2.110.0040.0309.15
5.2.100.0070.0279.14
5.2.90.0060.0279.14
5.2.80.0070.0279.14
5.2.70.0090.0369.14
5.2.60.0060.0349.09
5.2.50.0040.0319.06
5.2.40.0070.0289.04
5.2.30.0050.0309.01
5.2.20.0050.0289.00
5.2.10.0060.0278.93
5.2.00.0060.0278.79
5.1.60.0040.0248.07
5.1.50.0070.0278.07
5.1.40.0070.0218.05
5.1.30.0050.0288.40
5.1.20.0040.0288.42
5.1.10.0040.0258.14
5.1.00.0020.0288.14
5.0.50.0030.0216.62
5.0.40.0060.0236.48
5.0.30.0040.0326.29
5.0.20.0020.0216.27
5.0.10.0030.0206.25
5.0.00.0030.0316.23
4.4.90.0040.0194.78
4.4.80.0020.0204.75
4.4.70.0040.0184.75
4.4.60.0050.0124.76
4.4.50.0020.0224.77
4.4.40.0020.0294.71
4.4.30.0040.0144.76
4.4.20.0060.0124.84
4.4.10.0050.0134.85
4.4.00.0030.0244.76
4.3.110.0040.0214.67
4.3.100.0060.0164.66
4.3.90.0030.0154.63
4.3.80.0060.0284.58
4.3.70.0030.0164.63
4.3.60.0030.0174.63
4.3.50.0030.0224.62
4.3.40.0050.0274.54
4.3.30.0030.0203.29
4.3.20.0010.0173.26
4.3.10.0030.0153.22
4.3.00.0030.01315.90

preferences:
144.06 ms | 1394 KiB | 7 Q