3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Foreach - inline $results = []; $aHash = []; $i = 0; $tmp = ''; while ($i < 10000) { $tmp .= 'a'; ++$i; } $aHash = array_fill(100000000000000000000000, 100, $tmp); unset($i, $tmp); /* The Test */ $t = microtime(true); foreach ($aHash as $key => $val) $aHash[$key] .= "a"; echo (microtime(true) - $t) * 1000000;

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)
7.4.00.0110.00314.84
7.3.120.0030.01314.69
7.3.110.0040.01414.85
7.3.100.0130.00615.15
7.3.90.0030.00615.01
7.3.80.0070.00714.73
7.3.70.0080.00414.64
7.3.60.0000.01114.95
7.3.50.0040.01214.66
7.3.40.0100.00614.82
7.3.30.0120.00914.81
7.3.20.0060.00616.55
7.3.10.0060.00616.51
7.3.00.0070.01016.76
7.2.250.0110.01115.26
7.2.240.0100.01015.24
7.2.230.0100.00715.30
7.2.220.0000.01115.15
7.2.210.0030.01315.33
7.2.200.0070.00715.27
7.2.190.0060.00315.23
7.2.180.0040.00715.08
7.2.170.0120.00615.29
7.2.00.0040.01219.32
7.1.330.0070.01115.75
7.1.320.0090.00015.37
7.1.310.0030.01015.80
7.1.300.0060.00615.67
7.1.290.0060.00615.70
7.1.280.0000.01815.82
7.1.270.0070.01415.57
7.1.260.0070.00715.52
7.1.70.0030.00617.28
7.1.60.0070.02019.22
7.1.50.0250.00934.55
7.1.00.0030.07722.29
7.0.200.0020.00516.66
7.0.140.0030.07322.10
7.0.60.0200.05320.03
7.0.50.0130.07717.84
7.0.40.0100.08320.04
7.0.30.2100.04320.33
7.0.20.0370.07020.09
7.0.10.0070.05720.05
7.0.00.0100.09020.18
5.6.280.0070.07322.07
5.6.210.0100.04321.66
5.6.200.0130.07318.98
5.6.190.0030.04721.25
5.6.180.0230.07721.14
5.6.170.0230.08021.34
5.6.160.0200.08021.27
5.6.150.0030.08019.14
5.6.140.0030.05318.90
5.6.130.0100.07319.04
5.6.120.0000.04722.12
5.6.110.0070.06322.12
5.6.100.0100.08021.89
5.6.90.0100.08321.92
5.6.80.0130.07721.27
5.5.350.0200.07721.44
5.5.340.0030.08018.71
5.5.330.0100.08020.98
5.5.320.0300.05721.14
5.5.310.0230.08021.01
5.5.300.0030.05318.91
5.5.290.0130.07718.88
5.5.280.0100.07321.86
5.5.270.0130.06321.85
5.5.260.0100.06321.73
5.5.250.0030.05721.67
5.5.240.0170.07721.07
5.4.450.0870.05020.06
5.4.440.0570.05720.32
5.4.430.0000.06720.04
5.4.420.0070.06019.89
5.4.410.0230.05719.64
5.4.400.0200.07019.32
5.4.390.0100.06719.23
5.4.380.0270.04719.33
5.4.370.0070.05719.37
5.4.360.0230.04319.46
5.4.350.0230.04719.38
5.4.340.0170.04719.45
5.4.320.0050.03813.26
5.4.310.0070.03713.25
5.4.300.0040.03813.25
5.4.290.0090.03613.25
5.4.280.0080.05013.13
5.4.270.0170.05413.13
5.4.260.0150.06713.13
5.4.250.0170.07513.12
5.4.240.0120.05913.13
5.4.230.0150.08913.12
5.4.220.0070.05913.12
5.4.210.0140.04913.12
5.4.200.0110.05313.12
5.4.190.0110.05813.11
5.4.180.0110.05413.11
5.4.170.0070.05913.13
5.4.160.0130.05013.12
5.4.150.0200.05413.12
5.4.140.0120.05612.80
5.4.130.0080.05712.79
5.4.120.0180.06812.74
5.4.110.0140.05212.74
5.4.100.0250.05312.74
5.4.90.0130.05412.74
5.4.80.0230.08112.74
5.4.70.0150.06312.74
5.4.60.0100.05212.74
5.4.50.0220.06112.74
5.4.40.0150.06312.73
5.4.30.0110.05712.72
5.4.20.0120.06712.72
5.4.10.0200.08112.72
5.4.00.0360.06412.21
5.3.290.0100.04512.80
5.3.280.0190.07412.71
5.3.270.0100.06612.72
5.3.260.0150.13012.71
5.3.250.0130.05612.72
5.3.240.0110.05612.72
5.3.230.0160.05112.71
5.3.220.0150.07812.68
5.3.210.0270.08012.68
5.3.200.0120.06112.68
5.3.190.0200.05912.68
5.3.180.0150.07912.67
5.3.170.0240.06112.67
5.3.160.0110.05312.67
5.3.150.0130.04712.68
5.3.140.0100.05812.66
5.3.130.0100.04412.66
5.3.120.0120.06912.66
5.3.110.0110.04312.66
5.3.100.0070.04112.12
5.3.90.0040.05112.08
5.3.80.0120.05312.08
5.3.70.0130.04612.07
5.3.60.0060.05512.06
5.3.50.0220.07412.00
5.3.40.0150.09712.00
5.3.30.0090.04311.94
5.3.20.0090.03811.70
5.3.10.0050.03811.67
5.3.00.0080.04111.66
5.2.170.0060.0359.15
5.2.160.0080.0299.15
5.2.150.0070.0329.15
5.2.140.0040.0359.14
5.2.130.0100.0329.11
5.2.120.0400.0599.11
5.2.110.0100.0439.12
5.2.100.0080.0399.12
5.2.90.0060.0409.11
5.2.80.0120.0449.11
5.2.70.0080.0389.11
5.2.60.0090.0519.05
5.2.50.0080.0429.03
5.2.40.0080.0489.00
5.2.30.0170.0388.99
5.2.20.0120.0418.97
5.2.10.0170.0498.90
5.2.00.0170.0568.76
5.1.60.0140.0408.04
5.1.50.0140.0518.04
5.1.40.0070.0338.02
5.1.30.0080.0708.38
5.1.20.0090.0598.40
5.1.10.0130.0338.12
5.1.00.0050.0448.13
5.0.50.0090.0266.60
5.0.40.0090.0296.46
5.0.30.0100.0566.27
5.0.20.0070.0316.25
5.0.10.0070.0326.21
5.0.00.0140.0406.20
4.4.90.0100.0374.78
4.4.80.0070.0324.76
4.4.70.0120.0474.76
4.4.60.0050.0194.76
4.4.50.0060.0384.77
4.4.40.0120.0474.71
4.4.30.0040.0154.76
4.4.20.0000.0214.84
4.4.10.0040.0154.85
4.4.00.0050.0314.76
4.3.110.0040.0154.67
4.3.100.0030.0154.66
4.3.90.0030.0154.63
4.3.80.0040.0244.58
4.3.70.0030.0154.63
4.3.60.0040.0144.63
4.3.50.0070.0274.62
4.3.40.0050.0384.53
4.3.30.0030.0223.27
4.3.20.0040.0193.25
4.3.10.0020.0233.21
4.3.00.0170.0236.64

preferences:
37.53 ms | 401 KiB | 5 Q