3v4l.org

run code in 300+ PHP versions simultaneously
65<?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); withRefValue(5, $transform); withRefValue(6, $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)
8.3.60.0090.00618.43
8.3.50.0110.00822.94
8.3.40.0160.00318.82
8.3.30.0000.01419.40
8.3.20.0050.00320.34
8.3.10.0040.00423.48
8.3.00.0030.00617.63
8.2.180.0120.00318.41
8.2.170.0110.00422.96
8.2.160.0070.00720.34
8.2.150.0030.00624.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0000.00820.88
8.2.110.0000.00919.19
8.2.100.0080.00417.78
8.2.90.0040.00417.91
8.2.80.0000.00817.97
8.2.70.0060.00317.63
8.2.60.0030.00517.93
8.2.50.0030.00518.07
8.2.40.0030.00518.16
8.2.30.0040.00418.15
8.2.20.0000.00817.72
8.2.10.0040.00418.05
8.2.00.0000.00817.67
8.1.280.0070.01025.92
8.1.270.0040.00423.70
8.1.260.0050.00326.35
8.1.250.0060.01228.09
8.1.240.0070.00322.00
8.1.230.0040.00821.04
8.1.220.0000.00817.78
8.1.210.0080.00018.99
8.1.200.0070.00717.38
8.1.190.0040.00417.23
8.1.180.0030.00718.10
8.1.170.0000.01018.27
8.1.160.0030.00522.16
8.1.150.0080.00018.96
8.1.140.0050.00217.41
8.1.130.0070.00017.95
8.1.120.0040.00417.50
8.1.110.0070.00017.43
8.1.100.0030.00517.46
8.1.90.0040.00417.56
8.1.80.0000.00717.48
8.1.70.0030.00317.51
8.1.60.0080.00017.59
8.1.50.0090.00017.57
8.1.40.0000.00817.46
8.1.30.0030.00617.54
8.1.20.0030.00617.63
8.1.10.0030.00517.57
8.1.00.0040.00417.52
8.0.300.0070.00020.02
8.0.290.0040.00416.88
8.0.280.0040.00418.41
8.0.270.0000.00717.34
8.0.260.0070.00017.26
8.0.250.0000.00716.95
8.0.240.0000.00816.94
8.0.230.0030.00316.96
8.0.220.0040.00416.86
8.0.210.0000.00716.97
8.0.200.0030.00316.92
8.0.190.0040.00417.05
8.0.180.0040.00416.99
8.0.170.0040.00416.96
8.0.160.0060.00317.05
8.0.150.0020.00516.81
8.0.140.0040.00816.89
8.0.130.0030.00313.33
8.0.120.0080.00016.76
8.0.110.0030.00516.94
8.0.100.0050.00316.74
8.0.90.0000.00716.75
8.0.80.0030.01316.91
8.0.70.0040.00416.99
8.0.60.0050.00316.93
8.0.50.0040.00416.75
8.0.30.0120.01017.28
8.0.20.0090.01617.40
8.0.10.0000.00716.97
8.0.00.0120.00616.89
7.4.330.0000.00615.00
7.4.320.0000.00616.57
7.4.300.0030.00316.43
7.4.290.0030.00316.55
7.4.280.0060.00316.55
7.4.270.0000.00816.64
7.4.260.0030.00316.54
7.4.250.0050.00316.61
7.4.240.0020.00516.49
7.4.230.0030.00616.73
7.4.220.0070.01316.64
7.4.210.0090.00616.56
7.4.200.0040.00316.72
7.4.160.0060.01316.42
7.4.150.0090.00917.40
7.4.140.0180.00217.86
7.4.130.0140.01616.37
7.4.120.0090.00916.48
7.4.110.0090.00916.55
7.4.100.0090.01716.48
7.4.90.0100.01016.48
7.4.80.0140.01119.39
7.4.70.0130.00616.61
7.4.60.0090.00916.30
7.4.50.0000.00916.49
7.4.40.0170.00616.64
7.4.30.0030.01516.47
7.4.10.0030.01514.83
7.4.00.0050.01414.84
7.3.330.0000.00513.34
7.3.320.0000.00613.34
7.3.310.0030.00316.27
7.3.300.0000.00716.39
7.3.290.0060.00916.44
7.3.280.0090.00716.38
7.3.270.0000.01717.40
7.3.260.0190.00016.65
7.3.240.0170.00016.48
7.3.230.0110.00816.39
7.3.210.0150.01116.36
7.3.200.0110.01119.39
7.3.190.0090.00916.45
7.3.180.0070.01016.24
7.3.170.0080.00816.42
7.3.160.0030.01416.43
7.3.130.0100.00714.90
7.3.120.0060.01314.93
7.3.110.0140.00314.96
7.3.100.0090.00614.55
7.3.90.0070.01014.66
7.3.80.0060.00615.07
7.3.70.0130.00314.93
7.3.60.0080.00314.87
7.3.50.0030.00714.94
7.3.40.0070.00714.98
7.3.30.0040.00814.94
7.3.20.0030.01116.62
7.3.10.0070.00516.36
7.3.00.0090.00416.34
7.2.330.0120.00616.71
7.2.320.0100.01316.50
7.2.310.0140.00716.79
7.2.300.0130.01016.81
7.2.290.0070.01016.90
7.2.260.0070.01314.88
7.2.250.0060.00915.32
7.2.240.0000.01615.15
7.2.230.0140.00414.70
7.2.220.0100.01014.82
7.2.210.0000.01515.12
7.2.200.0070.01015.14
7.2.190.0040.01115.21
7.2.180.0040.01414.82
7.2.170.0070.01015.06
7.2.160.0030.01314.91
7.2.150.0000.01617.00
7.2.140.0040.01217.04
7.2.130.0030.00716.72
7.2.120.0030.01016.73
7.2.110.0050.01016.90
7.2.100.0080.00316.78
7.2.90.0030.01216.92
7.2.80.0060.01016.83
7.2.70.0070.00716.95
7.2.60.0090.00716.86
7.2.50.0080.00616.77
7.2.40.0100.00716.90
7.2.30.0080.00516.79
7.2.20.0080.00816.89
7.2.10.0080.00716.66
7.2.00.0150.00617.81
7.1.330.0070.01015.63
7.1.320.0090.00915.81
7.1.310.0070.01015.89
7.1.300.0000.01415.97
7.1.290.0070.00315.80
7.1.280.0070.01115.93
7.1.270.0070.00715.87
7.1.260.0000.01415.86
7.1.250.0060.00515.61
7.1.240.0070.00415.84
7.1.230.0050.00815.55
7.1.220.0040.01115.80
7.1.210.0070.00715.55
7.1.200.0060.01015.87
7.1.190.0030.01015.55
7.1.180.0070.00715.95
7.1.170.0090.00015.73
7.1.160.0090.00615.79
7.1.150.0030.01415.98
7.1.140.0030.01215.71
7.1.130.0060.00915.91
7.1.120.0180.00015.98
7.1.110.0090.00615.64
7.1.100.0080.00516.92
7.1.90.0100.00315.63
7.1.80.0000.01415.86
7.1.70.0050.01016.48
7.1.60.0100.01017.53
7.1.50.0110.00816.31
7.1.40.0100.00016.02
7.1.30.0030.00615.71
7.1.20.0040.01215.76
7.1.10.0060.00615.77
7.1.00.0020.04219.12
7.0.330.0100.00615.58
7.0.320.0100.00315.41
7.0.310.0120.00615.33
7.0.300.0030.01015.36
7.0.290.0070.01015.39
7.0.280.0040.01115.40
7.0.270.0000.01415.30
7.0.260.0000.01415.36
7.0.250.0040.01215.41
7.0.240.0070.00715.20
7.0.230.0000.01515.58
7.0.220.0070.00715.46
7.0.210.0040.01115.12
7.0.200.0000.01316.12
7.0.190.0070.00715.39
7.0.180.0000.01315.29
7.0.170.0100.00615.26
7.0.160.0070.00715.32
7.0.150.0000.00915.36
7.0.140.0090.03518.75
7.0.130.0040.00815.19
7.0.120.0060.00315.54
7.0.110.0060.00315.47
7.0.100.0030.00915.37
7.0.90.0030.00915.32
7.0.80.0130.00015.48
7.0.70.0000.01015.30
7.0.60.0080.04217.56
7.0.50.0110.02716.65
7.0.40.0080.03016.79
7.0.30.0180.02316.86
7.0.20.0280.03316.88
7.0.10.0100.02216.96
7.0.00.0050.04616.76
5.6.400.0050.00514.61
5.6.390.0080.00814.63
5.6.380.0060.00914.60
5.6.370.0100.00714.51
5.6.360.0100.00714.44
5.6.350.0030.01514.51
5.6.340.0100.00314.20
5.6.330.0000.01514.29
5.6.320.0000.01014.52
5.6.310.0030.01414.52
5.6.300.0100.00714.66
5.6.290.0030.01014.20
5.6.280.0100.03817.78
5.6.270.0070.00414.77
5.6.260.0040.01214.60
5.6.250.0060.00314.39
5.6.240.0080.00414.47
5.6.230.0030.00914.30
5.6.220.0070.00714.57
5.6.210.0030.04617.51
5.6.200.0030.02916.37
5.6.190.0070.04417.36
5.6.180.0210.04017.48
5.6.170.0070.02617.40
5.6.160.0010.02717.39
5.6.150.0070.03716.32
5.6.140.0040.02416.31
5.6.130.0050.04516.25
5.6.120.0030.03817.78
5.6.110.0070.04517.62
5.6.100.0100.02017.77
5.6.90.0100.04417.77
5.6.80.0060.02317.47
5.6.70.0000.01314.07
5.6.60.0060.00314.16
5.6.50.0100.00714.27
5.6.40.0030.01314.33
5.6.30.0070.00314.16
5.6.20.0030.01014.23
5.6.10.0140.00314.47
5.6.00.0100.00014.34
5.5.380.0030.01314.20
5.5.370.0120.00014.45
5.5.360.0030.01014.16
5.5.350.0090.02217.48
5.5.340.0030.04316.25
5.5.330.0110.02517.62
5.5.320.0050.03417.37
5.5.310.0220.04217.39
5.5.300.0110.04016.21
5.5.290.0050.03116.35
5.5.280.0050.03617.73
5.5.270.0110.04117.63
5.5.260.0030.04817.66
5.5.250.0020.02817.57
5.5.240.0210.03817.23
5.5.230.0030.00614.29
5.5.220.0060.00614.42
5.5.210.0060.00914.00
5.5.200.0030.01014.29
5.5.190.0030.00614.34
5.5.180.0030.00914.30
5.5.170.0030.01214.51
5.5.160.0030.00614.30
5.5.150.0000.01214.32
5.5.140.0000.01214.27
5.5.130.0070.01014.66
5.5.120.0060.00914.41
5.5.110.0150.00314.30
5.5.100.0070.01014.41
5.5.90.0100.00714.50
5.5.80.0070.00714.32
5.5.70.0070.00714.14
5.5.60.0030.00714.39
5.5.50.0030.01214.31
5.5.40.0110.00714.32
5.5.30.0030.00614.50
5.5.20.0130.00314.34
5.5.10.0070.00713.84
5.5.00.0100.00013.91
5.4.450.0230.02516.15
5.4.440.0220.02216.24
5.4.430.0230.02116.08
5.4.420.0120.02916.30
5.4.410.0170.02316.06
5.4.400.0150.02815.90
5.4.390.0150.02616.09
5.4.380.0620.03815.75
5.4.370.0270.03715.87
5.4.360.0150.03415.76
5.4.350.0280.03515.89
5.4.340.0220.03315.90
5.4.330.0040.00812.96
5.4.320.0040.02012.74
5.4.310.0040.02412.74
5.4.300.0040.02012.74
5.4.290.0070.01812.74
5.4.280.0050.02312.69
5.4.270.0080.01912.69
5.4.260.0070.02312.69
5.4.250.0030.02612.69
5.4.240.0100.02012.69
5.4.230.0070.02112.68
5.4.220.0070.01912.68
5.4.210.0060.02012.68
5.4.200.0040.02612.68
5.4.190.0080.02012.68
5.4.180.0060.02212.68
5.4.170.0050.02212.68
5.4.160.0060.02012.68
5.4.150.0050.02112.68
5.4.140.0050.02312.52
5.4.130.0040.02312.52
5.4.120.0050.02412.50
5.4.110.0070.01812.49
5.4.100.0030.02312.49
5.4.90.0070.02212.49
5.4.80.0070.02112.49
5.4.70.0070.02012.49
5.4.60.0070.02012.49
5.4.50.0080.01812.49
5.4.40.0060.02012.48
5.4.30.0050.02312.48
5.4.20.0060.02112.48
5.4.10.0090.01912.48
5.4.00.0040.02312.23
5.3.290.0040.04012.80
5.3.280.0070.03912.71
5.3.270.0050.04012.72
5.3.260.0030.04312.72
5.3.250.0060.03812.72
5.3.240.0040.04012.71
5.3.230.0100.03312.71
5.3.220.0060.03712.68
5.3.210.0070.03912.68
5.3.200.0090.03312.68
5.3.190.0070.03612.68
5.3.180.0080.03512.67
5.3.170.0060.04312.67
5.3.160.0070.03712.68
5.3.150.0080.03612.67
5.3.140.0080.03512.66
5.3.130.0060.03912.66
5.3.120.0070.03912.66
5.3.110.0080.03812.65
5.3.100.0070.03612.14
5.3.90.0060.03712.11
5.3.80.0070.03712.10
5.3.70.0080.03512.11
5.3.60.0050.03812.09
5.3.50.0070.03512.04
5.3.40.0060.03812.04
5.3.30.0070.03612.00
5.3.20.0060.03611.78
5.3.10.0040.03611.74
5.3.00.0050.03711.73
5.2.170.0090.0279.23
5.2.160.0050.0319.23
5.2.150.0060.0359.23
5.2.140.0040.0329.23
5.2.130.0060.0289.19
5.2.120.0040.0299.19
5.2.110.0060.0289.20
5.2.100.0060.0279.19
5.2.90.0060.0289.20
5.2.80.0020.0369.19
5.2.70.0080.0309.19
5.2.60.0070.0369.14
5.2.50.0090.0279.11
5.2.40.0070.0299.09
5.2.30.0060.0309.06
5.2.20.0050.0309.07
5.2.10.0040.0328.96
5.2.00.0030.0328.83
5.1.60.0070.0218.10
5.1.50.0020.0278.10
5.1.40.0020.0278.08
5.1.30.0060.0258.44
5.1.20.0050.0278.45
5.1.10.0060.0258.18
5.1.00.0070.0238.18
5.0.50.0060.0196.66
5.0.40.0040.0206.52
5.0.30.0030.0326.33
5.0.20.0040.0196.30
5.0.10.0050.0196.28
5.0.00.0070.0286.27
4.4.90.0020.0164.78
4.4.80.0020.0164.75
4.4.70.0040.0144.76
4.4.60.0020.0164.75
4.4.50.0010.0194.77
4.4.40.0010.0304.71
4.4.30.0020.0164.76
4.4.20.0030.0194.84
4.4.10.0010.0174.85
4.4.00.0010.0264.76
4.3.110.0040.0144.66
4.3.100.0050.0124.66
4.3.90.0050.0124.63
4.3.80.0030.0244.58
4.3.70.0030.0144.63
4.3.60.0040.0134.63
4.3.50.0020.0164.63
4.3.40.0030.0234.54
4.3.30.0040.0153.30
4.3.20.0010.0183.29
4.3.10.0030.0173.25
4.3.00.0030.01715.96

preferences:
83.84 ms | 401 KiB | 5 Q