3v4l.org

run code in 300+ PHP versions simultaneously
<?php define('MAX_LOOPS',5); function withRefValue($elements, $transform) { echo "\n---( Array with $elements element(s): )---\n"; //Build array: for ($i=0; $i<$elements; $i++) { $a[] = "v.$i"; } $counter=0; echo "--> State of array before loop:\n"; var_dump($a); echo "--> Do loop:\n"; foreach ($a as $k=>&$v) { echo " iteration $counter: \$k=$k; \$v=$v\n"; eval($transform); $counter++; if ($counter>MAX_LOOPS) { echo " ** Stuck in a loop! **\n"; break; } } echo "--> State of array after loop:\n"; var_dump($a); } echo "\nPopping elements off end of an unreferenced array, using &\$value."; $transform = 'array_pop($a);'; withRefValue(1, $transform); withRefValue(2, $transform); withRefValue(3, $transform); withRefValue(4, $transform);

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)
8.3.60.0070.01016.50
8.3.50.0150.00522.78
8.3.40.0150.00018.97
8.3.30.0110.00419.17
8.3.20.0000.00720.24
8.3.10.0000.00823.64
8.3.00.0050.00317.75
8.2.180.0120.00316.63
8.2.170.0070.00722.96
8.2.160.0030.01020.38
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0050.00321.09
8.2.110.0090.00920.99
8.2.100.0040.00819.57
8.2.90.0040.00419.21
8.2.80.0030.00717.97
8.2.70.0000.00917.50
8.2.60.0080.00018.05
8.2.50.0090.00018.07
8.2.40.0070.00018.34
8.2.30.0000.00818.28
8.2.20.0000.00817.84
8.2.10.0050.00318.22
8.2.00.0040.00417.67
8.1.280.0090.00625.92
8.1.270.0030.00523.92
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0140.00017.36
8.1.230.0090.00317.57
8.1.220.0080.00017.78
8.1.210.0030.00618.77
8.1.200.0000.00817.36
8.1.190.0090.00017.35
8.1.180.0080.00018.10
8.1.170.0080.00018.32
8.1.160.0040.00422.09
8.1.150.0040.00418.91
8.1.140.0080.00017.41
8.1.130.0030.00317.92
8.1.120.0020.00517.48
8.1.110.0040.00417.42
8.1.100.0000.00717.54
8.1.90.0070.00017.41
8.1.80.0070.00017.46
8.1.70.0030.00517.48
8.1.60.0040.00417.56
8.1.50.0050.00317.44
8.1.40.0040.00417.38
8.1.30.0040.00417.56
8.1.20.0080.00317.60
8.1.10.0080.00017.64
8.1.00.0040.00417.55
8.0.300.0020.00518.77
8.0.290.0030.00616.75
8.0.280.0000.00718.42
8.0.270.0070.00017.30
8.0.260.0030.00317.30
8.0.250.0080.00016.92
8.0.240.0000.00816.95
8.0.230.0040.00416.97
8.0.220.0000.00716.82
8.0.210.0000.00716.95
8.0.200.0000.00616.96
8.0.190.0080.00017.00
8.0.180.0040.00416.95
8.0.170.0080.00016.85
8.0.160.0000.00816.98
8.0.150.0030.00316.89
8.0.140.0040.00416.95
8.0.130.0060.00013.40
8.0.120.0040.00416.91
8.0.110.0040.00416.88
8.0.100.0040.00416.89
8.0.90.0050.00216.82
8.0.80.0090.01216.86
8.0.70.0040.00416.93
8.0.60.0000.00817.00
8.0.50.0000.00816.92
8.0.30.0130.01017.10
8.0.20.0070.01417.40
8.0.10.0000.00817.10
8.0.00.0060.01316.85
7.4.330.0050.00215.00
7.4.320.0030.00316.41
7.4.300.0030.00316.64
7.4.290.0030.00316.63
7.4.280.0040.00416.52
7.4.270.0040.00416.64
7.4.260.0000.00916.43
7.4.250.0040.00416.43
7.4.240.0020.00516.52
7.4.230.0000.00716.71
7.4.220.0120.00616.70
7.4.210.0100.01016.55
7.4.200.0050.00516.51
7.4.160.0120.00616.61
7.4.150.0080.01117.40
7.4.140.0100.00917.86
7.4.130.0140.00616.38
7.4.120.0050.01216.48
7.4.110.0110.00616.43
7.4.100.0210.00016.54
7.4.90.0120.00916.43
7.4.80.0100.00719.39
7.4.70.0080.01016.48
7.4.60.0100.00616.61
7.4.50.0030.00516.60
7.4.40.0080.01516.39
7.4.30.0070.01416.42
7.4.00.0060.00914.91
7.3.330.0030.00313.21
7.3.320.0030.00313.45
7.3.310.0050.00316.41
7.3.300.0000.00716.38
7.3.290.0090.00616.43
7.3.280.0080.01016.40
7.3.270.0070.01017.40
7.3.260.0090.00916.35
7.3.250.0080.01216.54
7.3.240.0120.00616.42
7.3.230.0080.00816.58
7.3.210.0120.00616.32
7.3.200.0110.00719.39
7.3.190.0160.00716.32
7.3.180.0080.00816.32
7.3.170.0100.00616.52
7.3.160.0150.00316.29
7.2.330.0060.01516.71
7.2.320.0100.01416.82
7.2.310.0180.00016.84
7.2.300.0090.01216.63
7.2.290.0160.00816.46
7.2.60.0060.00916.83
7.2.00.0030.01319.75
7.1.200.0040.00715.89
7.1.70.0030.00917.17
7.1.60.0030.00917.41
7.1.50.0000.02317.01
7.1.00.0000.07722.43
7.0.200.0100.01316.81
7.0.140.0000.07022.18
7.0.100.0100.08019.99
7.0.90.0100.05019.84
7.0.80.0230.04719.95
7.0.70.0200.07719.92
7.0.60.0200.07020.00
7.0.50.0430.06720.18
7.0.40.0030.04319.87
7.0.30.0000.04720.02
7.0.20.0070.03719.96
7.0.10.0230.02020.14
7.0.00.0000.04320.18
5.6.280.0070.07321.03
5.6.250.0070.08020.69
5.6.240.0030.08720.57
5.6.230.0100.08020.63
5.6.220.0030.08720.56
5.6.210.0030.04320.58
5.6.200.0130.08321.06
5.6.190.0030.06721.04
5.6.180.0070.04321.17
5.6.170.0230.03721.09
5.6.160.0030.04320.94
5.6.150.0070.04021.02
5.6.140.0030.07721.01
5.6.130.0100.07720.95
5.6.120.0030.04021.02
5.6.110.0070.04321.16
5.6.100.0130.03721.02
5.6.90.0030.04021.00
5.6.80.0000.04020.48
5.6.70.0070.03720.39
5.6.60.0170.05320.41
5.6.50.0030.04020.43
5.6.40.0130.04720.36
5.6.30.0030.06020.45
5.6.20.0070.05320.30
5.6.10.0030.04020.36
5.6.00.0030.04020.30
5.5.380.0000.09320.40
5.5.370.0070.08720.41
5.5.360.0130.08020.34
5.5.350.0030.08020.48
5.5.340.0030.06320.86
5.5.330.0170.06720.90
5.5.320.0000.04720.62
5.5.310.0070.03720.88
5.5.300.0100.03320.80
5.5.290.0000.07720.88
5.5.280.0030.04320.80
5.5.270.0070.07320.91
5.5.260.0030.05720.93
5.5.250.0070.04320.64
5.5.240.0100.03320.19
5.5.230.0070.05320.25
5.5.220.0100.07720.14
5.5.210.0070.04320.21
5.5.200.0030.04020.25
5.5.190.0000.04020.27
5.5.180.0070.04020.25
5.5.160.0030.04020.28
5.5.150.0070.03720.21
5.5.140.0030.06320.19
5.5.130.0000.04320.19
5.5.120.0100.03020.11
5.5.110.0030.06020.26
5.5.100.0070.04019.95
5.5.90.0100.07020.10
5.5.80.0030.07319.95
5.5.70.0030.08020.06
5.5.60.0100.07320.12
5.5.50.0230.05720.00
5.5.40.0100.04320.15
5.5.30.0170.07020.04
5.5.20.0000.08020.07
5.5.10.0100.07720.11
5.5.00.0100.04720.13
5.4.450.0100.05719.49
5.4.440.0030.04019.49
5.4.430.0100.07719.29
5.4.420.0030.06019.41
5.4.410.0070.03319.29
5.4.400.0070.06019.17
5.4.390.0000.04018.90
5.4.380.0070.02719.06
5.4.370.0070.07019.04
5.4.360.0030.03718.82
5.4.350.0000.04019.03
5.4.340.0030.06019.03
5.4.320.0070.03718.88
5.4.310.0030.03719.04
5.4.300.0000.04018.85
5.4.290.0000.04019.14
5.4.280.0030.06718.88
5.4.270.0030.04019.18
5.4.260.0000.04019.16
5.4.250.0000.03719.04
5.4.240.0070.07318.84
5.4.230.0070.06018.95
5.4.220.0030.08319.23
5.4.210.0030.07318.96
5.4.200.0100.03719.17
5.4.190.0030.07719.13
5.4.180.0130.06318.94
5.4.170.0130.07019.13
5.4.160.0030.07018.93
5.4.150.0100.07319.16
5.4.140.0070.07316.43
5.4.130.0030.07316.19
5.4.120.0170.06016.33
5.4.110.0070.07316.47
5.4.100.0030.05716.46
5.4.90.0070.06716.52
5.4.80.0100.06716.47
5.4.70.0000.04016.34
5.4.60.0070.07016.41
5.4.50.0100.06316.52
5.4.40.0100.06716.36
5.4.30.0070.07716.49
5.4.20.0070.07316.40
5.4.10.0070.07716.36
5.4.00.0070.07015.85
5.3.290.0030.03714.69
5.3.280.0130.07314.66
5.3.270.0170.04714.74
5.3.260.0030.08014.67
5.3.250.0030.07014.60
5.3.240.0070.08314.68
5.3.230.0070.05314.59
5.3.220.0070.07714.67
5.3.210.0070.08014.69
5.3.200.0070.07314.65
5.3.190.0170.04014.70
5.3.180.0100.04014.52
5.3.170.0100.05714.56
5.3.160.0070.07714.60
5.3.150.0070.04014.64
5.3.140.0070.07314.63
5.3.130.0070.05014.68
5.3.120.0070.07714.57
5.3.110.0130.06714.59
5.3.100.0030.08014.19
5.3.90.0030.07714.12
5.3.80.0100.07013.94
5.3.70.0130.07013.96
5.3.60.0070.07314.11
5.3.50.0130.06013.88
5.3.40.0070.07713.88
5.3.30.0100.05314.02
5.3.20.0070.05013.68
5.3.10.0100.03013.55
5.3.00.0100.06713.55
5.2.170.0030.06711.47
5.2.160.0030.06311.47
5.2.150.0030.06311.47
5.2.140.0070.05011.47
5.2.130.0030.06311.47
5.2.120.0000.05011.47
5.2.110.0070.03011.47
5.2.100.0030.04311.47
5.2.90.0030.06311.47
5.2.80.0000.07011.47
5.2.70.0030.06311.47
5.2.60.0070.05711.47
5.2.50.0070.05711.47
5.2.40.0100.04311.47
5.2.30.0030.03311.47
5.2.20.0070.06311.47
5.2.10.0100.04711.47
5.2.00.0100.05311.47
5.1.60.0030.05011.47
5.1.50.0000.06011.47
5.1.40.0030.05311.47
5.1.30.0030.05311.47
5.1.20.0070.05311.47
5.1.10.0030.05711.47
5.1.00.0100.04311.47
5.0.50.0070.03711.47
5.0.40.0030.02311.47
5.0.30.0000.07011.47
5.0.20.0030.04311.47
5.0.10.0070.03711.47
5.0.00.0000.05711.47
4.4.90.0030.03311.47
4.4.80.0000.03711.47
4.4.70.0030.03311.47
4.4.60.0030.03711.47
4.4.50.0100.02711.47
4.4.40.0000.05711.47
4.4.30.0070.03011.47
4.4.20.0030.02011.47
4.4.10.0030.02011.47
4.4.00.0070.04311.47
4.3.110.0030.02711.47
4.3.100.0070.03011.47
4.3.90.0030.03011.47
4.3.80.0030.05311.47
4.3.70.0030.03711.47
4.3.60.0100.02711.47
4.3.50.0070.03311.47
4.3.40.0070.05011.47
4.3.30.0000.03711.47
4.3.20.0070.03311.47
4.3.10.0000.03711.47
4.3.00.0000.02711.47

preferences:
48.4 ms | 401 KiB | 5 Q