3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array_fill(0, 10000, true); var_dump(memory_get_usage()); foreach($a as $k => $v){ unset($a[$k]); } var_dump(memory_get_usage()); $b = $a; var_dump(memory_get_usage());

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)
7.4.00.0100.00815.51
7.3.120.0030.01515.58
7.3.110.0110.00715.21
7.3.100.0050.01115.67
7.3.90.0050.00715.46
7.3.80.0080.00615.39
7.3.70.0100.00615.37
7.3.60.0050.00815.47
7.3.50.0060.00915.49
7.3.40.0070.00615.29
7.3.30.0090.00515.37
7.3.20.0040.01416.60
7.3.10.0090.00516.52
7.3.00.0050.00916.47
7.2.250.0070.01315.80
7.2.240.0070.01215.54
7.2.230.0070.01115.67
7.2.220.0060.00715.58
7.2.210.0050.00515.60
7.2.200.0050.01115.60
7.2.190.0060.00515.71
7.2.180.0060.01015.71
7.2.170.0050.01015.55
7.2.130.0000.01316.71
7.2.120.0030.00617.02
7.2.110.0070.00716.87
7.2.100.0040.00816.68
7.2.90.0070.00716.59
7.2.80.0110.00016.96
7.2.70.0000.00917.06
7.2.60.0060.00616.76
7.2.50.0040.00816.65
7.2.40.0040.01117.05
7.2.30.0050.00516.96
7.2.20.0030.00917.06
7.2.10.0040.01117.01
7.2.00.0050.00818.11
7.1.330.0070.01115.78
7.1.320.0060.00615.67
7.1.310.0050.00915.66
7.1.300.0040.01015.73
7.1.290.0060.00815.75
7.1.280.0050.01015.58
7.1.270.0050.01315.53
7.1.260.0050.00815.74
7.1.250.0040.01415.72
7.1.240.0060.00915.68
7.1.230.0040.00415.80
7.1.220.0110.00015.90
7.1.210.0070.00315.68
7.1.200.0040.00715.77
7.1.190.0080.00815.51
7.1.180.0060.00615.48
7.1.170.0000.01115.88
7.1.160.0000.00815.61
7.1.150.0070.00715.91
7.1.140.0030.01015.40
7.1.130.0030.00615.72
7.1.120.0040.00715.60
7.1.110.0080.00315.80
7.1.100.0070.00415.81
7.1.90.0070.00315.50
7.1.80.0090.00315.93
7.1.70.0050.00616.42
7.1.60.0040.00917.61
7.1.50.0050.01316.24
7.1.40.0060.00915.75
7.1.30.0030.01015.78
7.1.20.0070.00715.73
7.1.10.0000.01115.91
7.1.00.0060.04119.00
7.0.330.0070.00715.38
7.0.320.0070.00715.43
7.0.310.0160.00015.43
7.0.300.0000.01015.52
7.0.290.0000.01015.20
7.0.280.0090.00315.23
7.0.270.0060.00315.35
7.0.260.0030.00715.12
7.0.250.0050.00515.66
7.0.240.0030.01015.29
7.0.230.0030.00715.34
7.0.220.0040.00815.62
7.0.210.0050.00515.43
7.0.200.0190.00715.33
7.0.190.0030.00715.48
7.0.180.0090.00315.22
7.0.170.0040.00715.26
7.0.160.0070.00715.58
7.0.150.0000.01415.46
7.0.140.0090.00615.42
7.0.130.0000.01215.35
7.0.120.0030.01215.54
7.0.110.0000.01315.40
7.0.100.0040.02718.08
7.0.90.0130.05017.93
7.0.80.0050.02818.13
7.0.70.0050.04117.96
7.0.60.0060.02817.98
7.0.50.0130.04718.27
7.0.40.0080.03316.84
7.0.30.0030.03616.74
7.0.20.0070.04216.81
7.0.10.0050.04416.64
7.0.00.0110.02516.85
5.6.380.0070.00715.99
5.6.370.0030.01215.95
5.6.360.0100.01016.30
5.6.350.0040.00916.00
5.6.340.0000.01416.08
5.6.330.0000.01216.18
5.6.320.0070.00316.08
5.6.310.0100.00716.25
5.6.300.0110.00415.98
5.6.290.0090.00316.41
5.6.280.0060.00916.08
5.6.270.0060.00916.11
5.6.260.0060.00916.14
5.6.250.0100.04819.14
5.6.240.0070.04319.32
5.6.230.0060.04919.39
5.6.220.0050.05719.22
5.6.210.0100.02719.21
5.6.200.0100.04419.43
5.6.190.0070.04419.36
5.6.180.0080.04319.43
5.6.170.0110.03119.34
5.6.160.0100.02519.25
5.6.150.0020.02919.53
5.6.140.0050.03819.37
5.6.130.0140.03919.42
5.6.120.0100.04219.45
5.6.110.0130.03219.54
5.6.100.0060.04819.51
5.6.90.0030.03719.38
5.6.80.0100.02719.05
5.6.70.0120.03419.07
5.6.60.0100.02819.04
5.6.50.0120.02019.26
5.6.40.0080.02519.18
5.6.30.0050.02919.06
5.6.20.0050.04419.16
5.6.10.0070.04418.98
5.6.00.0150.03819.12
5.5.380.0080.04617.34
5.5.370.0030.01312.74
5.5.360.0030.00712.56
5.5.350.0070.00312.86
5.5.340.0070.00312.50
5.5.330.0000.01212.42
5.5.320.0000.01512.61
5.5.310.0040.01112.89
5.5.300.0050.00512.98
5.5.290.0030.01312.34
5.5.280.0090.00312.74
5.5.270.0030.00912.84
5.5.260.0040.01212.61
5.5.250.0060.00612.70
5.5.240.0000.01312.70
5.5.230.0060.00912.76
5.5.220.0110.00412.52
5.5.210.0040.01112.74
5.5.200.0100.00612.55
5.5.190.0070.00312.76
5.5.180.0070.00712.80
5.5.170.0030.00912.61
5.5.160.0030.01012.90
5.5.150.0030.01412.59
5.5.140.0030.01012.57
5.5.130.0030.01112.67
5.5.120.0030.00912.47
5.5.110.0070.00412.70
5.5.100.0060.00912.35
5.5.90.0040.00812.81
5.5.80.0060.00612.73
5.5.70.0060.00612.75
5.5.60.0060.00912.70
5.5.50.0040.00812.62
5.5.40.0000.00912.64
5.5.30.0030.00912.26
5.5.20.0080.00412.89
5.5.10.0070.00412.72
5.5.00.0040.00812.61

preferences:
53.2 ms | 403 KiB | 5 Q