3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ar1 = array(); for($i = 0; $i < 1000; $i++){ $ar1[] = 'a' . $i; } unset($ar1['775']); unset($ar1['175']); unset($ar1['75']); count($ar1);

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)
8.3.40.0150.00018.70
8.3.30.0120.00318.71
8.3.20.0040.00418.86
8.3.10.0050.00321.05
8.3.00.0040.00423.48
8.2.170.0150.00618.82
8.2.160.0100.01022.96
8.2.150.0040.01124.18
8.2.140.0050.00324.66
8.2.130.0070.00026.16
8.2.120.0070.00021.00
8.2.110.0060.00320.47
8.2.100.0040.00817.91
8.2.90.0000.00819.22
8.2.80.0030.00517.97
8.2.70.0040.00417.75
8.2.60.0060.00317.93
8.2.50.0040.00418.07
8.2.40.0050.00318.07
8.2.30.0000.00719.39
8.2.20.0050.00317.77
8.2.10.0040.00417.60
8.2.00.0110.00017.60
8.1.270.0000.00723.99
8.1.260.0140.00426.35
8.1.250.0040.00428.09
8.1.240.0110.01122.61
8.1.230.0060.00621.16
8.1.220.0000.00818.77
8.1.210.0040.00419.07
8.1.200.0040.00417.25
8.1.190.0000.00717.52
8.1.180.0000.00818.10
8.1.170.0040.00418.73
8.1.160.0040.00419.00
8.1.150.0030.00518.66
8.1.140.0030.00617.52
8.1.130.0050.00317.47
8.1.120.0000.00717.43
8.1.110.0050.00317.47
8.1.100.0040.00417.41
8.1.90.0040.00417.58
8.1.80.0000.00817.53
8.1.70.0030.00517.39
8.1.60.0030.00617.54
8.1.50.0050.00217.46
8.1.40.0030.00617.59
8.1.30.0000.00817.61
8.1.20.0040.00417.64
8.1.10.0050.00317.53
8.1.00.0080.00017.65
8.0.300.0000.00720.00
8.0.290.0050.00317.16
8.0.280.0000.00718.57
8.0.270.0000.00717.23
8.0.260.0000.00716.90
8.0.250.0000.00717.01
8.0.240.0030.00516.96
8.0.230.0000.00716.86
8.0.220.0040.00416.84
8.0.210.0030.00317.01
8.0.200.0070.00016.87
8.0.190.0040.00417.03
8.0.180.0030.00316.87
8.0.170.0050.00217.01
8.0.160.0050.00216.89
8.0.150.0050.00216.85
8.0.140.0000.00816.80
8.0.130.0050.00013.43
8.0.120.0030.00516.80
8.0.110.0040.00416.84
8.0.100.0050.00316.92
8.0.90.0000.00716.97
8.0.80.0030.01316.84
8.0.70.0070.00016.77
8.0.60.0000.00816.93
8.0.50.0030.00516.89
8.0.30.0080.01016.98
8.0.20.0100.00717.40
8.0.10.0040.00417.01
8.0.00.0100.01116.99
7.4.330.0000.00615.12
7.4.320.0070.00016.57
7.4.300.0030.00316.66
7.4.290.0000.00716.68
7.4.280.0040.00416.65
7.4.270.0000.00716.59
7.4.260.0000.00613.37
7.4.250.0080.00016.62
7.4.240.0000.00716.55
7.4.230.0030.00316.50
7.4.220.0100.01416.41
7.4.210.0090.00516.68
7.4.200.0030.00316.36
7.4.190.0000.00716.53
7.4.160.0130.01016.64
7.4.150.0150.00417.40
7.4.140.0110.00917.86
7.4.130.0090.01116.49
7.4.120.0000.01816.69
7.4.110.0180.00716.60
7.4.100.0110.00816.58
7.4.90.0030.02116.44
7.4.80.0170.00019.39
7.4.70.0150.00716.64
7.4.60.0130.00316.60
7.4.50.0030.00616.34
7.4.40.0100.00722.77
7.4.30.0030.02016.68
7.4.00.0100.00714.88
7.3.330.0000.00613.18
7.3.320.0030.00313.04
7.3.310.0030.00316.17
7.3.300.0030.00316.34
7.3.290.0070.01316.38
7.3.280.0110.00616.39
7.3.270.0120.00617.40
7.3.260.0100.00818.24
7.3.250.0070.01016.41
7.3.240.0110.00616.45
7.3.230.0170.00016.44
7.3.210.0070.01116.31
7.3.200.0090.01219.39
7.3.190.0120.00816.46
7.3.180.0100.00616.48
7.3.170.0130.01016.38
7.3.160.0100.01016.52
7.3.120.0030.01014.86
7.2.330.0070.01416.81
7.2.320.0060.01516.86
7.2.310.0030.01716.52
7.2.300.0070.01016.59
7.2.290.0100.00716.55
7.1.70.0000.01017.29
7.1.60.0080.00417.31
7.1.50.0070.01316.96
7.1.00.0100.04722.54
7.0.200.0060.00916.78
7.0.140.0070.06321.97
7.0.100.0030.05020.00
7.0.90.0130.07319.95
7.0.80.0100.08320.15
7.0.70.0070.05319.88
7.0.60.0070.07320.05
7.0.50.0100.08020.32
7.0.40.0100.08320.00
7.0.30.0070.07720.08
7.0.20.0130.08020.18
7.0.10.0100.08319.98
7.0.00.0170.07320.19
5.6.280.0100.06721.07
5.6.250.0030.09020.56
5.6.240.0200.08020.67
5.6.230.0130.07020.65
5.6.220.0100.07720.71
5.6.210.0070.08320.64
5.6.200.0130.08021.05
5.6.190.0100.08321.17
5.6.180.0130.07321.05
5.6.170.0100.08021.17
5.6.160.0030.09021.17
5.6.150.0070.06021.06
5.6.140.0100.08321.04
5.6.130.0100.05721.09
5.6.120.0130.08021.04
5.6.110.0100.04721.04
5.6.100.0070.06321.13
5.6.90.0030.05020.94
5.6.80.0100.07320.46
5.6.70.0130.07320.36
5.6.60.0070.07720.46
5.6.50.0100.04020.48
5.6.40.0200.04720.43
5.6.30.0130.07020.45
5.6.20.0130.04720.32
5.6.10.0000.06720.34
5.6.00.0200.06020.30
5.5.380.0130.07020.39
5.5.370.0000.05720.48
5.5.360.0030.07720.38
5.5.350.0100.08020.38
5.5.340.0100.04320.85
5.5.330.0030.07320.68
5.5.320.0170.07020.95
5.5.310.0070.05020.96
5.5.300.0130.05320.95
5.5.290.0100.06720.94
5.5.280.0030.09320.90
5.5.270.0100.08720.90
5.5.260.0130.04720.80
5.5.250.0070.08320.76
5.5.240.0070.05320.19
5.5.230.0100.06720.24
5.5.220.0030.06320.23
5.5.210.0070.04720.23
5.5.200.0100.07320.20
5.5.190.0130.06720.18
5.5.180.0100.06720.29
5.5.160.0000.05720.18
5.5.150.0100.05320.26
5.5.140.0130.06720.00
5.5.130.0100.08320.18
5.5.120.0030.08020.25
5.5.110.0070.07020.10
5.5.100.0030.07020.10
5.5.90.0100.07020.14
5.5.80.0170.07320.09
5.5.70.0130.04320.09
5.5.60.0230.07019.96
5.5.50.0170.06720.03
5.5.40.0070.06020.16
5.5.30.0000.09020.02
5.5.20.0030.06720.08
5.5.10.0070.08020.01
5.5.00.0030.05720.08
5.4.450.0100.04719.31
5.4.440.0230.04319.29
5.4.430.0130.07019.38
5.4.420.0100.07719.28
5.4.410.0070.07719.17
5.4.400.0100.07019.05
5.4.390.0000.07719.24
5.4.380.0070.05019.04
5.4.370.0100.06318.78
5.4.360.0070.08318.98
5.4.350.0130.07319.09
5.4.340.0070.05319.06
5.4.320.0130.06019.13
5.4.310.0100.04019.05
5.4.300.0030.06718.97
5.4.290.0100.06719.14
5.4.280.0100.07719.04
5.4.270.0070.06018.98
5.4.260.0100.05719.02
5.4.250.0070.05319.06
5.4.240.0070.05719.02
5.4.230.0030.08019.05
5.4.220.0170.06719.05
5.4.210.0100.05018.94
5.4.200.0130.07318.97
5.4.190.0170.04718.97
5.4.180.0030.04319.06
5.4.170.0030.07319.06
5.4.160.0070.07718.92
5.4.150.0100.06318.76
5.4.140.0070.05716.38
5.4.130.0130.06716.17
5.4.120.0100.06316.32
5.4.110.0200.03716.36
5.4.100.0070.04016.36
5.4.90.0070.07016.27
5.4.80.0100.06716.37
5.4.70.0070.07316.46
5.4.60.0030.06316.20
5.4.50.0070.07716.23
5.4.40.0070.07716.37
5.4.30.0070.07316.45
5.4.20.0030.08016.33
5.4.10.0030.04716.24
5.4.00.0070.07715.86
5.3.290.0130.06714.77
5.3.280.0130.07314.75
5.3.270.0070.04014.62
5.3.260.0100.06714.76
5.3.250.0030.04314.74
5.3.240.0130.07014.64
5.3.230.0100.06014.67
5.3.220.0030.04714.72
5.3.210.0030.07714.64
5.3.200.0100.07014.59
5.3.190.0170.06714.68
5.3.180.0000.07014.64
5.3.170.0170.07014.70
5.3.160.0130.05314.73
5.3.150.0070.06714.56
5.3.140.0100.06714.57
5.3.130.0130.07314.69
5.3.120.0070.05714.67
5.3.110.0070.07314.54
5.3.100.0100.07014.11
5.3.90.0100.07314.04
5.3.80.0100.04714.17
5.3.70.0100.06714.14
5.3.60.0030.04714.04
5.3.50.0000.07014.05
5.3.40.0100.03314.10
5.3.30.0100.07013.92
5.3.20.0100.07013.63
5.3.10.0030.05013.75
5.3.00.0030.07013.75
5.2.170.0070.05011.11
5.2.160.0000.03311.33
5.2.150.0000.04011.29
5.2.140.0000.04311.36
5.2.130.0000.05011.30
5.2.120.0030.06311.25
5.2.110.0030.06711.05
5.2.100.0100.06011.12
5.2.90.0070.05711.05
5.2.80.0000.03711.30
5.2.70.0070.06711.30
5.2.60.0000.05011.19
5.2.50.0100.06311.16
5.2.40.0100.05711.01
5.2.30.0070.04310.92
5.2.20.0030.06310.98
5.2.10.0100.06011.06
5.2.00.0000.06310.87
5.1.60.0070.04710.31
5.1.50.0070.05310.08
5.1.40.0030.05710.18
5.1.30.0070.03010.55
5.1.20.0030.03010.43
5.1.10.0000.04010.30
5.1.00.0100.05310.12
5.0.50.0030.0339.99
5.0.40.0070.0339.99
5.0.30.0000.0439.99
5.0.20.0000.0479.99
5.0.10.0100.0339.99
5.0.00.0030.0709.99
4.4.90.0000.0339.99
4.4.80.0100.0379.99
4.4.70.0030.0379.99
4.4.60.0030.0309.99
4.4.50.0070.0139.99
4.4.40.0000.0379.99
4.4.30.0000.0379.99
4.4.20.0030.0379.99
4.4.10.0030.0279.99
4.4.00.0000.0579.99
4.3.110.0100.0279.99
4.3.100.0100.0279.99
4.3.90.0030.0339.99
4.3.80.0000.0579.99
4.3.70.0000.0239.99
4.3.60.0000.0439.99
4.3.50.0100.0279.99
4.3.40.0070.0479.99
4.3.30.0030.0309.99
4.3.20.0100.0309.99
4.3.10.0000.0379.99
4.3.00.0000.0339.99

preferences:
42.82 ms | 400 KiB | 5 Q