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_1() { global $aHash; /* The Test */ $t = microtime(true); reset($aHash); foreach($aHash as $key=>$val) $aHash[$key] .= "a"; return (microtime(true) - $t); } // Variable Clean-up function Test2_End() { global $aHash; unset($aHash); } var_dump(Test2_1()); ?>

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)
7.4.00.0110.00815.04
7.3.120.0090.00615.15
7.3.110.0120.00614.77
7.3.100.0000.00914.83
7.3.90.0070.01115.01
7.3.80.0000.01514.71
7.3.70.0030.01015.02
7.3.60.0090.00315.04
7.3.50.0030.01214.92
7.3.40.0100.00315.10
7.3.30.0030.01314.63
7.3.20.0030.01016.55
7.3.10.0040.01216.61
7.3.00.0070.00716.62
7.2.250.0080.01215.27
7.2.240.0070.01015.27
7.2.230.0070.01115.32
7.2.220.0060.01014.68
7.2.210.0090.00915.28
7.2.200.0070.01114.96
7.2.190.0090.00615.16
7.2.180.0070.01115.38
7.2.170.0090.00615.21
7.2.00.0030.01019.42
7.1.330.0030.01315.62
7.1.320.0030.01415.86
7.1.310.0120.00315.76
7.1.300.0060.01015.91
7.1.290.0030.00915.70
7.1.280.0090.00615.64
7.1.270.0040.00815.58
7.1.260.0070.00715.65
7.1.70.0040.00416.93
7.1.60.0130.01319.32
7.1.50.0090.01216.66
7.1.00.0000.08022.27
7.0.200.0030.00716.64
7.0.140.0070.07022.23
7.0.110.0100.08021.61
7.0.100.0130.06721.73
7.0.90.0070.08321.82
7.0.80.0030.07321.68
7.0.70.0070.08321.65
7.0.60.0070.07721.64
7.0.50.0030.07722.14
7.0.40.0070.05320.23
7.0.30.0100.08320.01
7.0.20.0000.08719.98
7.0.10.0130.07020.09
7.0.00.0100.03320.00
5.6.280.0000.07722.02
5.6.260.0030.07021.61
5.6.250.0000.09021.61
5.6.240.0070.08321.64
5.6.230.0030.08721.55
5.6.220.0070.04721.57
5.6.210.0030.07321.66
5.6.200.0070.07021.93
5.6.190.0070.07321.86
5.6.180.0000.05021.88
5.6.170.0070.08022.02
5.6.160.0030.04722.05
5.6.150.0070.08022.15
5.6.140.0100.04321.85
5.6.130.0000.04322.14
5.6.120.0000.04021.98
5.6.110.0000.08721.84
5.6.100.0070.07321.93
5.6.90.0030.07721.98
5.6.80.0030.08021.23
5.6.70.0030.08321.28
5.6.60.0030.08021.37
5.6.50.0000.08721.25
5.6.40.0000.08321.29
5.6.30.0070.05321.21
5.6.20.0000.07721.37
5.6.10.0030.07321.19
5.6.00.0130.07021.35
5.5.380.0030.07021.44
5.5.370.0070.07721.21
5.5.360.0070.08021.46
5.5.350.0070.07721.36
5.5.340.0030.05021.70
5.5.330.0030.08321.82
5.5.320.0000.09021.73
5.5.310.0070.07321.73
5.5.300.0100.06321.75
5.5.290.0070.07021.84
5.5.280.0070.08021.71
5.5.270.0030.07021.74
5.5.260.0000.06021.76
5.5.250.0030.06321.66
5.5.240.0030.07321.23
5.5.230.0030.07321.04
5.5.220.0070.07721.07
5.5.210.0070.08021.14
5.5.200.0030.07721.10
5.5.190.0030.07321.23
5.5.180.0030.09020.95
5.5.160.0000.08021.12
5.5.150.0070.07721.10
5.5.140.0000.08321.02
5.5.130.0030.08321.16
5.5.120.0070.07721.11
5.5.110.0100.08021.01
5.5.100.0030.08320.85
5.5.90.0100.07021.12
5.5.80.0000.07721.00
5.5.70.0000.08020.97
5.5.60.0000.07720.98
5.5.50.0030.08021.10
5.5.40.0100.06720.89
5.5.30.0070.07020.96
5.5.20.0070.08020.99
5.5.10.0030.04721.08
5.5.00.0070.04721.05
5.4.450.0070.08020.15
5.4.440.0030.07020.21
5.4.430.0070.07720.05
5.4.420.0030.08320.09
5.4.410.0030.07320.02
5.4.400.0070.06719.73
5.4.390.0030.07319.76
5.4.380.0000.04719.62
5.4.370.0030.05319.70
5.4.360.0030.05019.85
5.4.350.0070.06719.86
5.4.340.0030.07719.79
5.4.320.0100.07019.71
5.4.310.0070.07319.89
5.4.300.0130.06719.70
5.4.290.0100.07019.75
5.4.280.0030.07019.75
5.4.270.0130.06719.90
5.4.260.0030.08019.79
5.4.250.0070.07719.78
5.4.240.0030.05019.68
5.4.230.0130.06719.70
5.4.220.0130.07019.74
5.4.210.0000.07319.66
5.4.200.0070.07019.96
5.4.190.0100.04719.69
5.4.180.0100.05719.96
5.4.170.0030.07319.65
5.4.160.0030.07019.77
5.4.150.0000.07719.70
5.4.140.0070.05717.22
5.4.130.0070.06017.17
5.4.120.0030.07317.19
5.4.110.0030.07717.21
5.4.100.0030.07317.27
5.4.90.0030.07017.41
5.4.80.0100.06717.23
5.4.70.0100.06317.23
5.4.60.0100.07017.26
5.4.50.0070.07017.01
5.4.40.0030.06317.07
5.4.30.0030.07717.24
5.4.20.0070.07017.22
5.4.10.0100.05017.11
5.4.00.0030.07316.67
5.3.290.0000.08315.49
5.3.280.0070.07715.34
5.3.270.0070.06315.58
5.3.260.0030.08015.50
5.3.250.0100.04015.42
5.3.240.0100.07315.40
5.3.230.0070.07315.41
5.3.220.0030.08715.46
5.3.210.0070.07715.38
5.3.200.0030.07315.39
5.3.190.0030.04715.39
5.3.180.0030.07715.38
5.3.170.0000.08315.37
5.3.160.0030.07315.36
5.3.150.0000.07715.37
5.3.140.0070.07015.45
5.3.130.0070.06015.46
5.3.120.0030.07715.60
5.3.110.0030.07715.38
5.3.100.0070.07014.85
5.3.90.0030.07014.82
5.3.80.0030.07714.61
5.3.70.0070.06714.83
5.3.60.0070.04014.82
5.3.50.0030.06714.69
5.3.40.0030.07714.77
5.3.30.0000.07715.06
5.3.20.0000.07014.68
5.3.10.0070.05714.64
5.3.00.0070.07014.38
5.2.170.0100.06013.47
5.2.160.0070.06013.47
5.2.150.0030.06013.47
5.2.140.0070.05313.47
5.2.130.0030.05313.47
5.2.120.0000.05713.47
5.2.110.0000.06713.47
5.2.100.0000.05313.47
5.2.90.0000.06313.47
5.2.80.0030.06013.47
5.2.70.0000.03713.47
5.2.60.0030.06313.47
5.2.50.0030.06013.47
5.2.40.0000.06313.47
5.2.30.0030.06013.47
5.2.20.0030.05713.47
5.2.10.0070.05713.47
5.2.00.0030.06313.47
5.1.60.0000.03313.47
5.1.50.0030.03013.47
5.1.40.0030.03013.47
5.1.30.0070.05313.47
5.1.20.0000.05713.47
5.1.10.0030.05713.47
5.1.00.0030.06013.47
5.0.50.0000.04713.47
5.0.40.0000.04713.47
5.0.30.0000.07013.47
5.0.20.0100.04713.47
5.0.10.0000.04713.47
5.0.00.0030.05013.47
4.4.90.0000.03313.47
4.4.80.0030.03713.47
4.4.70.0030.03713.47
4.4.60.0000.04013.47
4.4.50.0070.03313.47
4.4.40.0030.03713.47
4.4.30.0000.04013.47
4.4.20.0000.04013.47
4.4.10.0000.03713.47
4.4.00.0000.05713.47
4.3.110.0000.03713.47
4.3.100.0030.03013.47
4.3.90.0070.03313.47
4.3.80.0000.05713.47
4.3.70.0030.01713.47
4.3.60.0030.02013.47
4.3.50.0030.03313.47
4.3.40.0030.05713.47
4.3.30.0000.02313.47
4.3.20.0000.04313.47
4.3.10.0030.02013.47
4.3.00.0030.04013.47

preferences:
41.89 ms | 400 KiB | 5 Q