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 Test1_9() { global $aHash; /* The Test */ $t = microtime(true); reset($aHash); $key = array_keys($aHash); $size = sizeOf($key); for ($i=0; $i<$size; $i++) $tmp[] = $aHash[$key[$i]]; return (microtime(true) - $t); } // Variable Clean-up function Test1_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)
7.1.70.0080.00017.26
7.1.60.0140.01019.82
7.1.50.0090.01216.90
7.1.00.0030.07722.51
7.0.200.0100.00616.70
7.0.140.0070.07021.92
7.0.60.0030.07721.62
7.0.50.0030.06022.11
7.0.40.0030.07720.18
7.0.30.0070.07720.19
7.0.20.0100.07720.12
7.0.10.0030.06720.01
7.0.00.0030.04320.11
5.6.280.0070.07021.01
5.6.210.0000.08020.69
5.6.200.0030.08721.07
5.6.190.0000.08721.10
5.6.180.0070.07321.10
5.6.170.0000.09021.09
5.6.160.0070.06721.10
5.6.150.0000.08321.15
5.6.140.0030.05721.20
5.6.130.0030.09021.33
5.6.120.0030.08021.14
5.6.110.0000.08721.08
5.6.100.0030.07021.11
5.6.90.0030.08321.12
5.6.80.0030.07020.48
5.6.70.0130.07320.57
5.6.60.0070.07320.56
5.6.50.0030.07720.58
5.6.40.0030.07720.54
5.6.30.0070.07720.64
5.6.20.0030.07720.56
5.6.10.0100.07320.57
5.6.00.0070.08320.65
5.5.350.0000.08320.46
5.5.340.0100.07720.88
5.5.330.0030.08021.16
5.5.320.0130.08321.17
5.5.310.0070.07320.98
5.5.300.0030.08020.96
5.5.290.0070.08320.89
5.5.280.0100.07721.10
5.5.270.0030.08020.95
5.5.260.0030.08720.83
5.5.250.0030.08320.82
5.5.240.0030.07320.26
5.5.230.0030.08020.40
5.5.220.0070.06320.29
5.5.210.0000.05720.48
5.5.200.0030.06020.25
5.5.190.0070.07020.34
5.5.180.0030.08020.49
5.5.160.0000.06720.41
5.5.150.0070.07020.25
5.5.140.0070.06320.34
5.5.130.0070.07320.37
5.5.120.0070.07020.25
5.5.110.0030.07720.22
5.5.100.0000.08720.26
5.5.90.0070.07020.34
5.5.80.0030.07020.35
5.5.70.0070.08020.12
5.5.60.0030.07020.16
5.5.50.0000.06020.38
5.5.40.0030.07020.28
5.5.30.0100.04020.17
5.5.20.0100.06720.28
5.5.10.0130.07320.29
5.5.00.0030.08320.09
5.4.450.0030.07719.40
5.4.440.0030.08319.34
5.4.430.0070.06719.23
5.4.420.0030.07719.22
5.4.410.0030.08019.36
5.4.400.0070.08019.02
5.4.390.0070.07719.01
5.4.380.0030.06318.91
5.4.370.0030.07319.18
5.4.360.0000.08018.90
5.4.350.0030.07318.91
5.4.340.0030.05019.17
5.4.320.0070.05019.16
5.4.310.0070.07019.02
5.4.300.0000.06319.03
5.4.290.0070.07019.12
5.4.280.0070.07319.03
5.4.270.0130.05019.07
5.4.260.0000.07719.07
5.4.250.0100.07319.04
5.4.240.0030.07718.93
5.4.230.0000.08018.90
5.4.220.0030.08319.06
5.4.210.0100.06718.92
5.4.200.0030.05719.11
5.4.190.0030.06319.21
5.4.180.0200.06019.19
5.4.170.0030.06319.06
5.4.160.0000.07719.10
5.4.150.0030.07019.14
5.4.140.0170.06716.47
5.4.130.0070.06716.52
5.4.120.0070.07316.38
5.4.110.0070.06716.60
5.4.100.0000.07016.46
5.4.90.0030.07316.66
5.4.80.0030.07716.47
5.4.70.0100.03316.46
5.4.60.0070.04316.35
5.4.50.0030.04316.34
5.4.40.0030.03716.54
5.4.30.0070.03016.40
5.4.20.0030.03316.48
5.4.10.0000.03016.39
5.4.00.0030.03015.77
5.3.290.0030.04014.82
5.3.280.0030.08014.73
5.3.270.0030.04314.71
5.3.260.0100.05314.72
5.3.250.0100.07314.73
5.3.240.0030.07314.67
5.3.230.0030.06014.69
5.3.220.0070.06714.52
5.3.210.0070.05014.45
5.3.200.0070.07714.71
5.3.190.0070.07314.69
5.3.180.0030.07014.50
5.3.170.0100.04014.66
5.3.160.0170.03714.65
5.3.150.0000.03714.70
5.3.140.0070.03714.66
5.3.130.0000.04014.54
5.3.120.0000.04014.63
5.3.110.0070.02714.53
5.3.100.0000.03714.10
5.3.90.0000.03714.14
5.3.80.0030.03314.05
5.3.70.0000.03714.00
5.3.60.0030.03314.02
5.3.50.0000.03014.09
5.3.40.0030.03014.05
5.3.30.0070.02313.95
5.3.20.0030.03013.75
5.3.10.0000.03013.64
5.3.00.0030.02713.65
5.2.170.0000.03311.44
5.2.160.0000.03311.44
5.2.150.0000.02711.44
5.2.140.0030.02711.44
5.2.130.0070.02311.44
5.2.120.0030.02311.44
5.2.110.0000.02711.44
5.2.100.0070.03311.44
5.2.90.0030.02311.44
5.2.80.0030.02311.44
5.2.70.0000.02311.44
5.2.60.0000.02711.44
5.2.50.0030.02011.44
5.2.40.0000.02311.44
5.2.30.0070.02011.44
5.2.20.0000.02311.44
5.2.10.0000.02311.44
5.2.00.0030.02011.44
5.1.60.0000.02011.44
5.1.50.0030.02011.44
5.1.40.0000.02011.44
5.1.30.0000.02311.44
5.1.20.0000.03011.44
5.1.10.0000.02011.44
5.1.00.0000.03311.44
5.0.50.0030.03711.44
5.0.40.0000.04711.44
5.0.30.0030.06311.44
5.0.20.0000.04711.44
5.0.10.0000.04711.44
5.0.00.0000.07011.44
4.4.90.0000.01311.44
4.4.80.0000.01311.44
4.4.70.0000.01311.44
4.4.60.0030.01011.44
4.4.50.0000.01311.44
4.4.40.0000.02011.44
4.4.30.0000.01311.44
4.4.20.0000.01311.44
4.4.10.0030.03711.44
4.4.00.0000.05311.44
4.3.110.0000.04011.44
4.3.100.0030.02711.44
4.3.90.0070.03011.44
4.3.80.0030.02711.44
4.3.70.0000.03311.44
4.3.60.0000.04011.44
4.3.50.0000.04011.44
4.3.40.0000.02311.44
4.3.30.0030.02711.44
4.3.20.0000.04311.44
4.3.10.0030.03711.44
4.3.00.0030.03711.44

preferences:
36.93 ms | 401 KiB | 5 Q