3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = ['foo'=>1]; $last = $current = memory_get_usage(); foreach($array as $k=>&$v) { $last = $current; $current = memory_get_usage(); echo "Diff is " . ($current - $last) . "\n"; $array['baz']=3; $last = $current; $current = memory_get_usage(); echo "Diff is " . ($last - $current) . "\n"; echo $v . "\n"; }

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)
7.4.10.0100.01016.53
7.4.00.0070.00915.66
7.3.130.0040.01516.15
7.3.120.0090.00615.61
7.3.110.0070.01015.35
7.3.100.0110.00315.65
7.3.90.0050.00915.37
7.3.80.0020.01215.86
7.3.70.0060.00515.60
7.3.60.0080.00715.50
7.3.50.0090.00415.51
7.3.40.0060.01115.68
7.3.30.0060.00615.60
7.3.20.0090.00617.43
7.3.10.0070.01017.45
7.3.00.0060.01017.30
7.2.260.0060.01216.64
7.2.250.0100.01016.03
7.2.240.0040.01315.60
7.2.230.0020.01415.89
7.2.220.0060.00815.67
7.2.210.0000.01515.79
7.2.200.0050.00615.86
7.2.190.0070.01115.86
7.2.180.0050.01015.82
7.2.170.0060.00515.81
7.2.160.0030.01316.32
7.2.150.0070.01118.39
7.2.140.0060.00618.57
7.2.130.0080.00418.38
7.2.120.0030.01518.42
7.2.110.0030.01518.44
7.2.100.0040.01218.39
7.2.90.0080.00818.41
7.2.80.0030.01318.43
7.2.70.0030.01218.36
7.2.60.0070.01318.41
7.2.50.0030.01018.41
7.2.40.0080.00818.35
7.2.30.0000.01918.53
7.2.20.0060.00618.36
7.2.10.0030.01418.38
7.2.00.0020.01518.84
7.1.330.0050.01116.65
7.1.320.0050.00816.62
7.1.310.0080.00516.75
7.1.300.0050.00616.59
7.1.290.0050.01016.70
7.1.280.0030.01016.56
7.1.270.0050.00716.43
7.1.260.0030.01216.46
7.1.250.0090.00317.35
7.1.240.0120.00617.28
7.1.230.0080.00817.21
7.1.220.0120.00617.44
7.1.210.0100.00317.20
7.1.200.0060.00917.38
7.1.190.0100.00617.27
7.1.180.0070.01017.38
7.1.170.0040.00717.43
7.1.160.0030.01517.44
7.1.150.0070.00717.35
7.1.140.0030.01017.45
7.1.130.0100.00317.23
7.1.120.0000.01317.38
7.1.110.0140.00017.21
7.1.100.0130.00617.15
7.1.90.0060.01217.38
7.1.80.0090.00917.23
7.1.70.0080.00317.25
7.1.60.0070.01218.58
7.1.50.0100.00517.19
7.1.40.0030.01117.27
7.1.30.0060.00617.23
7.1.20.0000.01217.38
7.1.10.0100.00317.48
7.1.00.0020.04419.83
7.0.330.0120.00317.10
7.0.320.0070.00716.86
7.0.310.0110.00717.07
7.0.300.0040.00716.94
7.0.290.0000.01117.14
7.0.280.0030.01216.79
7.0.270.0110.00417.04
7.0.260.0070.00717.00
7.0.250.0000.00917.05
7.0.240.0150.00317.09
7.0.230.0070.01017.05
7.0.220.0120.00317.22
7.0.210.0060.00917.08
7.0.200.0090.00516.82
7.0.190.0130.00017.06
7.0.180.0070.00317.12
7.0.170.0030.01317.18
7.0.160.0030.00716.79
7.0.150.0030.00916.91
7.0.140.0050.04019.58
7.0.130.0030.01017.15
7.0.120.0060.01017.01
7.0.110.0050.04518.52
7.0.100.0090.04218.57
7.0.90.0100.04018.56
7.0.80.0180.03318.53
7.0.70.0070.03518.53
7.0.60.0120.02518.59
7.0.50.0070.02818.52
7.0.40.0160.03817.42
7.0.30.0020.04717.33
7.0.20.0030.04817.20
7.0.10.0080.02517.34
7.0.00.0030.04617.33
5.6.400.0140.00316.13
5.6.390.0030.00716.02
5.6.380.0070.00316.29
5.6.370.0100.00716.06
5.6.360.0000.01516.11
5.6.350.0140.00315.78
5.6.340.0030.01215.88
5.6.330.0080.00816.22
5.6.320.0080.00516.05
5.6.310.0070.00716.14
5.6.300.0040.01115.84
5.6.290.0100.00316.05
5.6.280.0080.03618.44
5.6.270.0060.00616.15
5.6.260.0030.04318.37
5.6.250.0060.04418.38
5.6.240.0120.03518.34
5.6.230.0130.04118.34
5.6.220.0070.04018.13
5.6.210.0120.04018.29
5.6.200.0070.04318.42
5.6.190.0050.02818.31
5.6.180.0060.04118.30
5.6.170.0090.04018.38
5.6.160.0140.04018.38
5.6.150.0050.05018.31
5.6.140.0100.04018.33
5.6.130.0070.04218.28
5.6.120.0020.03818.29
5.6.110.0050.04718.31
5.6.100.0080.04818.20
5.6.90.0070.03518.19
5.6.80.0110.03617.87
5.6.70.0070.04217.99
5.6.60.0110.03618.01
5.6.50.0090.04017.97
5.6.40.0030.03318.04
5.6.30.0070.04217.82
5.6.20.0070.04318.09
5.6.10.0080.04517.96
5.6.00.0030.03617.85
5.5.380.0060.04516.64
5.5.370.0050.04216.77
5.5.360.0120.03916.88
5.5.350.0020.04516.65
5.5.340.0050.03316.98
5.5.330.0050.04516.93
5.5.320.0020.05116.81
5.5.310.0050.04216.72
5.5.300.0100.04116.90
5.5.290.0050.05016.73
5.5.280.0070.04516.95
5.5.270.0090.04716.80
5.5.260.0070.04717.08
5.5.250.0100.04016.79
5.5.240.0050.04616.70
5.5.230.0080.04216.56
5.5.220.0070.04016.52
5.5.210.0070.02816.78
5.5.200.0030.04516.72
5.5.190.0150.03016.58
5.5.180.0070.04516.46
5.5.170.0060.00915.65
5.5.160.0060.04116.63
5.5.150.0090.03916.64
5.5.140.0100.04216.80
5.5.130.0050.04016.71
5.5.120.0060.04216.63
5.5.110.0080.03716.69
5.5.100.0070.04416.57
5.5.90.0080.04216.61
5.5.80.0090.03416.49
5.5.70.0050.04216.48
5.5.60.0070.02916.54
5.5.50.0100.04116.68
5.5.40.0030.05216.65
5.5.30.0100.04016.64
5.5.20.0060.04316.51
5.5.10.0020.02716.53
5.5.00.0030.02216.51
5.4.450.0090.03616.24
5.4.440.0080.04316.27
5.4.430.0080.04316.27
5.4.420.0190.03416.20
5.4.410.0050.04416.13
5.4.400.0080.04216.09
5.4.390.0110.03916.08
5.4.380.0140.03416.11
5.4.370.0090.04015.99
5.4.360.0110.03816.00
5.4.350.0080.04016.04
5.4.340.0060.03216.15
5.4.330.0160.00413.05
5.4.320.0050.04516.03
5.4.310.0090.04216.04
5.4.300.0040.04716.03
5.4.290.0060.03515.99
5.4.280.0080.03716.00
5.4.270.0070.04516.08
5.4.260.0110.04016.03
5.4.250.0090.04116.07
5.4.240.0080.02916.08
5.4.230.0090.04216.08
5.4.220.0090.04216.07
5.4.210.0080.04016.03
5.4.200.0100.04016.01
5.4.190.0090.03816.11
5.4.180.0120.03816.02
5.4.170.0030.03216.03
5.4.160.0140.02716.08
5.4.150.0060.04115.98
5.4.140.0100.03714.61
5.4.130.0160.03214.79
5.4.120.0140.03314.61
5.4.110.0060.02814.79
5.4.100.0050.03214.70
5.4.90.0070.03814.77
5.4.80.0110.03714.66
5.4.70.0120.03514.71
5.4.60.0080.03714.77
5.4.50.0080.02114.58
5.4.40.0090.04114.61
5.4.30.0090.03814.70
5.4.20.0050.04714.65
5.4.10.0070.03514.77
5.4.00.0100.03314.33
5.3.290.0060.03213.87
5.3.280.0050.04413.86
5.3.270.0060.03213.76
5.3.260.0070.03613.83
5.3.250.0090.01813.74
5.3.240.0130.03313.78
5.3.230.0100.04113.77
5.3.220.0160.03613.75
5.3.210.0080.04213.78
5.3.200.0100.04013.76
5.3.190.0080.02813.76
5.3.180.0110.03813.72
5.3.170.0120.04013.74
5.3.160.0120.02113.82
5.3.150.0110.03613.70
5.3.140.0080.04213.78
5.3.130.0080.04513.75
5.3.120.0030.04613.82
5.3.110.0070.04213.75
5.3.100.0110.03813.50
5.3.90.0070.04313.46
5.3.80.0140.03413.51
5.3.70.0070.04213.51
5.3.60.0070.04213.45
5.3.50.0060.04213.39
5.3.40.0090.04313.47
5.3.30.0150.03513.40
5.3.20.0020.04613.32
5.3.10.0060.04213.39
5.3.00.0120.03613.24
5.2.170.0030.06311.21
5.2.160.0030.06011.20
5.2.150.0030.06311.06
5.2.140.0070.06311.06
5.2.130.0070.05311.16
5.2.120.0000.06311.00
5.2.110.0030.04311.17
5.2.100.0070.06311.17
5.2.90.0030.06011.01
5.2.80.0030.06311.05
5.2.70.0030.06311.03
5.2.60.0000.04710.98
5.2.50.0000.05010.98
5.2.40.0030.06310.91
5.2.30.0030.06011.06
5.2.20.0000.05310.86
5.2.10.0030.06010.86
5.2.00.0030.05010.74
5.1.60.0070.04310.61
5.1.50.0070.03310.61
5.1.40.0070.02310.61
5.1.30.0000.02710.61
5.1.20.0070.02010.61
5.1.10.0000.02710.61
5.1.00.0030.02710.61
5.0.50.0030.02010.61
5.0.40.0000.02010.61
5.0.30.0030.03010.61
5.0.20.0000.02310.61
5.0.10.0030.01710.61
5.0.00.0000.03010.61
4.4.90.0000.03710.61
4.4.80.0030.03010.61
4.4.70.0030.03010.61
4.4.60.0130.02310.61
4.4.50.0030.03310.61
4.4.40.0030.03710.61
4.4.30.0030.02010.61
4.4.20.0030.01310.61
4.4.10.0000.01710.61
4.4.00.0000.03010.61
4.3.110.0000.02010.61
4.3.100.0030.01710.61
4.3.90.0000.02010.61
4.3.80.0000.02710.61
4.3.70.0000.01710.61
4.3.60.0000.01710.61
4.3.50.0000.01710.61
4.3.40.0000.02310.61
4.3.30.0000.01710.61
4.3.20.0000.01710.61
4.3.10.0000.01710.61
4.3.00.0000.01310.61

preferences:
38.65 ms | 400 KiB | 5 Q