3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Initial Configurationglobal $aHash;$i   = 0;$tmp = '';while($i < 10000) {  $tmp .= 'a';  ++$i;}$aHash = array_fill(100000000000000000000000, 100, $tmp);unset($i, $tmp);// Test Sourcefunction 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-upfunction 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)
8.3.40.0110.00318.59
8.3.30.0070.00718.79
8.3.20.0080.00020.26
8.3.10.0000.00721.65
8.3.00.0040.00417.38
8.2.170.0100.01022.96
8.2.160.0070.00720.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0070.00021.00
8.2.110.0060.00322.34
8.2.100.0080.00321.14
8.2.90.0000.00718.95
8.2.80.0000.00817.97
8.2.70.0040.00417.25
8.2.60.0000.00717.80
8.2.50.0030.00618.07
8.2.40.0040.00418.16
8.2.30.0080.00018.03
8.2.20.0040.00417.54
8.2.10.0040.00417.84
8.2.00.0000.00717.54
8.1.270.0030.00723.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00623.73
8.1.230.0050.00519.16
8.1.220.0000.00817.74
8.1.210.0060.00318.77
8.1.200.0030.00617.10
8.1.190.0040.00416.88
8.1.180.0040.00418.10
8.1.170.0040.00418.50
8.1.160.0000.00721.99
8.1.150.0070.00018.68
8.1.140.0000.00817.32
8.1.130.0000.00717.66
8.1.120.0040.00417.26
8.1.110.0000.00817.31
8.1.100.0040.00417.29
8.1.90.0000.00717.22
8.1.80.0070.00017.30
8.1.70.0000.00617.21
8.1.60.0090.00017.43
8.1.50.0040.00417.34
8.1.40.0000.00817.34
8.1.30.0000.00817.35
8.1.20.0040.00417.44
8.1.10.0000.00717.39
8.1.00.0090.00317.20
8.0.300.0060.00318.77
8.0.290.0000.00716.58
8.0.280.0040.00418.26
8.0.270.0030.00317.10
8.0.260.0030.00317.11
8.0.250.0030.00316.76
8.0.240.0030.00316.81
8.0.230.0040.00416.66
8.0.220.0050.00316.73
8.0.210.0000.00716.80
8.0.200.0080.00016.80
8.0.190.0030.00316.87
8.0.180.0000.00716.85
8.0.170.0000.00816.82
8.0.160.0030.00316.75
8.0.150.0080.00016.77
8.0.140.0100.00016.74
8.0.130.0030.00313.20
8.0.120.0040.00416.70
8.0.110.0000.00816.65
8.0.100.0000.00716.74
8.0.90.0000.00716.70
8.0.80.0150.00616.73
8.0.70.0000.00716.60
8.0.60.0040.00416.73
8.0.50.0030.00616.53
8.0.30.0120.00916.81
8.0.20.0080.01617.40
8.0.10.0030.00316.80
8.0.00.0090.00816.51
7.4.330.0030.00315.08
7.4.320.0030.00316.35
7.4.300.0060.00016.38
7.4.290.0000.00716.47
7.4.280.0030.00616.29
7.4.270.0000.00816.43
7.4.260.0090.00016.45
7.4.250.0060.00316.31
7.4.240.0040.00316.47
7.4.230.0040.00416.52
7.4.220.0070.01116.32
7.4.210.0070.00716.38
7.4.200.0070.00016.55
7.4.160.0040.01116.25
7.4.150.0220.01817.40
7.4.140.0060.01217.86
7.4.130.0100.00616.43
7.4.120.0080.01016.32
7.4.110.0140.00616.52
7.4.100.0150.00616.35
7.4.90.0070.01316.28
7.4.80.0100.00619.39
7.4.70.0060.00916.50
7.4.60.0140.00316.27
7.4.50.0060.00316.14
7.4.40.0130.00316.21
7.4.30.0040.01816.53
7.4.00.0120.00414.47
7.3.330.0000.00613.04
7.3.320.0000.00612.97
7.3.310.0030.00316.24
7.3.300.0030.00316.16
7.3.290.0100.00316.10
7.3.280.0060.01016.17
7.3.270.0150.01017.40
7.3.260.0060.01716.28
7.3.250.0080.01016.15
7.3.240.0140.00316.12
7.3.230.0040.01116.39
7.3.210.0060.01316.30
7.3.200.0100.00919.39
7.3.190.0150.00616.21
7.3.180.0070.01016.39
7.3.170.0100.01016.27
7.3.160.0090.00616.41
7.2.330.0040.01316.53
7.2.320.0080.00816.33
7.2.310.0080.00816.34
7.2.300.0130.00316.23
7.2.290.0070.00716.23
7.2.00.0030.00918.80
7.1.100.0000.01117.84
7.1.70.0000.00817.00
7.1.60.0000.01017.28
7.1.50.0000.02216.96
7.1.00.0030.07722.48
7.0.200.0070.01016.48
7.0.140.0000.07022.09
7.0.60.0070.08020.02
7.0.50.0070.08317.80
7.0.40.0070.06719.96
7.0.30.0330.06320.01
7.0.20.0170.07720.04
7.0.10.0100.08720.00
7.0.00.0030.05020.08
5.6.280.0030.07321.07
5.6.210.0030.08320.46
5.6.200.0100.06318.19
5.6.190.0100.03720.61
5.6.180.3070.04720.67
5.6.170.0370.06320.50
5.6.160.0070.08720.50
5.6.150.0170.07018.21
5.6.140.0000.07318.11
5.6.130.0030.08718.13
5.6.120.0100.08020.98
5.6.110.0170.06321.13
5.6.100.0130.04721.01
5.6.90.0170.06020.98
5.6.80.0130.07320.36
5.6.70.4330.04720.52
5.5.350.0230.07720.44
5.5.340.0030.05717.96
5.5.330.0100.08020.36
5.5.320.3000.04720.32
5.5.310.0300.06320.28
5.5.300.0130.07718.00
5.5.290.0030.08317.87
5.5.280.0100.07720.79
5.5.270.0130.04020.95
5.5.260.0170.07720.67
5.5.250.0000.07020.70
5.5.240.0270.07320.15
5.4.450.0500.04319.42
5.4.440.0470.04719.41
5.4.430.0500.03319.45
5.4.420.0470.03719.40
5.4.410.0400.04019.00
5.4.400.0230.03719.14
5.4.390.0270.04319.23
5.4.380.0130.05718.70
5.4.370.0130.05018.56
5.4.360.0270.04718.56
5.4.350.0070.06018.72
5.4.340.0070.05718.72
5.4.320.0020.03912.45
5.4.310.0080.04212.45
5.4.300.0080.03712.45
5.4.290.0060.04412.45
5.4.280.0060.04512.35
5.4.270.0060.03912.34
5.4.260.0060.03712.35
5.4.250.0030.04012.35
5.4.240.0090.03712.34
5.4.230.0010.04312.34
5.4.220.0070.04212.34
5.4.210.0050.03612.34
5.4.200.0050.03812.34
5.4.190.0090.03412.33
5.4.180.0060.03712.34
5.4.170.0050.03612.35
5.4.160.0060.04512.34
5.4.150.0060.03912.34
5.4.140.0070.04112.02
5.4.130.0100.04112.01
5.4.120.0060.03611.97
5.4.110.0060.03611.96
5.4.100.0060.03611.96
5.4.90.0070.03611.96
5.4.80.0050.03711.96
5.4.70.0090.03611.96
5.4.60.0060.03411.96
5.4.50.0080.04211.96
5.4.40.0060.03811.95
5.4.30.0080.04111.95
5.4.20.0090.03711.94
5.4.10.0060.04711.95
5.4.00.0070.03411.44
5.3.290.0060.03912.80
5.3.280.0120.04412.71
5.3.270.0060.04712.73
5.3.260.0070.03912.72
5.3.250.0080.03712.72
5.3.240.0060.03912.72
5.3.230.0040.04112.71
5.3.220.0050.03912.68
5.3.210.0090.04012.68
5.3.200.0060.03812.68
5.3.190.0090.03612.68
5.3.180.0060.03712.68
5.3.170.0070.03612.67
5.3.160.0060.03612.67
5.3.150.0070.03912.67
5.3.140.0060.03712.66
5.3.130.0080.03912.66
5.3.120.0110.03912.66
5.3.110.0040.04212.66
5.3.100.0060.03712.12
5.3.90.0080.03512.09
5.3.80.0090.03312.08
5.3.70.0060.03712.07
5.3.60.0030.04312.06
5.3.50.0030.03912.00
5.3.40.0060.03712.00
5.3.30.0080.03411.94
5.3.20.0040.03711.72
5.3.10.0040.03711.68
5.3.00.0070.03811.67

preferences:
49.16 ms | 400 KiB | 5 Q