3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=array('title'=>'a','arr'=>[]); $b=array('title'=>'b','arr'=>[]); $b=array('title'=>'c','arr'=>[]); $arr=Array(); $map=Array(); $arr[1]=&$a; $map[0]=&$a; $map[1]=&$b; $map[2]=&$c; $map[0]['arr'][22]=$b; //$map[1]['arr'][33]=$c; ?><h2>MAP</h2><? var_dump($map); ?><h2>ARR</h2><? var_dump($arr);

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)
8.3.60.0120.00916.63
8.3.50.0080.01121.18
8.3.40.0090.00618.84
8.3.30.0140.00018.68
8.3.20.0040.00420.21
8.3.10.0030.00723.51
8.3.00.0040.00419.81
8.2.180.0100.00616.63
8.2.170.0120.00322.96
8.2.160.0030.01320.57
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0060.00317.38
8.2.110.0000.01122.07
8.2.100.0060.00619.48
8.2.90.0030.00519.20
8.2.80.0040.00417.97
8.2.70.0040.00417.75
8.2.60.0090.00417.93
8.2.50.0060.00318.07
8.2.40.0030.00619.21
8.2.30.0000.00719.32
8.2.20.0000.00817.70
8.2.10.0040.00417.97
8.2.00.0040.00417.94
8.1.280.0140.00325.92
8.1.270.0080.00022.20
8.1.260.0030.00626.35
8.1.250.0040.00428.09
8.1.240.0030.00622.61
8.1.230.0090.00317.48
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0070.00317.22
8.1.190.0050.00317.22
8.1.180.0000.00718.10
8.1.170.0030.00518.34
8.1.160.0040.00421.96
8.1.150.0050.00218.75
8.1.140.0000.00717.35
8.1.130.0030.00317.55
8.1.120.0050.00217.23
8.1.110.0050.00217.30
8.1.100.0070.00017.29
8.1.90.0050.00217.38
8.1.80.0040.00417.41
8.1.70.0030.00317.41
8.1.60.0000.00817.43
8.1.50.0080.00017.50
8.1.40.0030.00617.52
8.1.30.0090.00017.57
8.1.20.0040.00417.50
8.1.10.0040.00417.55
8.1.00.0050.00317.41
8.0.300.0080.00018.77
8.0.290.0040.00416.63
8.0.280.0000.00718.39
8.0.270.0070.00017.26
8.0.260.0030.00317.26
8.0.250.0000.00716.75
8.0.240.0050.00316.77
8.0.230.0040.00416.76
8.0.220.0070.00016.86
8.0.210.0040.00416.82
8.0.200.0000.00616.83
8.0.190.0000.00716.91
8.0.180.0090.00016.76
8.0.170.0000.00716.85
8.0.160.0030.00316.89
8.0.150.0030.00316.81
8.0.140.0050.00216.83
8.0.130.0030.00313.34
8.0.120.0000.00716.70
8.0.110.0040.00416.71
8.0.100.0030.00516.82
8.0.90.0040.00416.86
8.0.80.0120.00816.88
8.0.70.0050.00216.91
8.0.60.0030.00516.84
8.0.50.0080.00016.84
8.0.30.0070.01217.15
8.0.20.0100.01017.40
8.0.10.0030.00316.77
8.0.00.0110.00816.76
7.4.330.0030.00315.08
7.4.320.0030.00316.60
7.4.300.0060.00016.57
7.4.290.0070.00016.50
7.4.280.0000.00816.45
7.4.270.0000.00716.47
7.4.260.0080.00016.45
7.4.250.0030.00416.43
7.4.240.0040.00416.48
7.4.230.0040.00416.34
7.4.220.0040.01216.50
7.4.210.0100.01016.42
7.4.200.0000.00716.63
7.4.160.0060.01116.32
7.4.150.0300.00817.40
7.4.140.0060.01817.86
7.4.130.0160.01116.46
7.4.120.0080.01016.58
7.4.110.0130.01016.50
7.4.100.0170.00716.50
7.4.90.0130.00316.45
7.4.80.0100.01019.39
7.4.70.0100.00716.53
7.4.60.0100.00616.48
7.4.50.0000.00816.37
7.4.40.0080.00816.44
7.4.30.0130.00316.42
7.4.00.0100.00615.00
7.3.330.0050.00013.03
7.3.320.0030.00313.06
7.3.310.0040.00416.24
7.3.300.0050.00316.09
7.3.290.0060.01116.22
7.3.280.0060.01216.25
7.3.270.0120.00617.40
7.3.260.0100.01016.20
7.3.240.0120.00616.28
7.3.230.0100.01316.56
7.3.210.0110.00616.14
7.3.200.0120.00616.48
7.3.190.0090.00616.46
7.3.180.0080.00816.52
7.3.170.0030.01216.38
7.3.160.0090.00616.30
7.2.330.0110.00516.77
7.2.320.0160.00716.77
7.2.310.0160.00316.63
7.2.300.0090.00616.73
7.2.290.0080.00816.68
7.2.00.0030.00719.34
7.1.100.0160.00718.02
7.1.70.0110.00417.13
7.1.60.0030.01619.27
7.1.50.0070.02316.66
7.1.00.0000.08022.57
7.0.200.0060.00316.69
7.0.60.0100.08019.90
7.0.50.0070.05317.95
7.0.40.0170.07720.12
7.0.30.0330.07320.17
7.0.20.0300.08020.16
7.0.10.0030.06020.22
7.0.00.0000.09020.02
5.6.280.0070.02720.92
5.6.210.0030.06020.56
5.6.200.0070.05018.16
5.6.190.0170.07720.79
5.6.180.2830.04020.39
5.6.170.0270.08320.47
5.6.160.0130.06720.33
5.6.150.0030.04018.19
5.6.140.0070.08018.21
5.6.130.0000.04718.10
5.6.120.0000.08021.14
5.6.110.0070.09021.02
5.6.100.0070.06321.12
5.6.90.0170.07021.09
5.6.80.0030.04020.38
5.5.350.0130.07020.40
5.5.340.0130.07317.92
5.5.330.0100.08020.20
5.5.320.0130.04020.17
5.5.310.0400.07020.26
5.5.300.0100.03317.87
5.5.290.0000.04317.88
5.5.280.0030.04020.75
5.5.270.0100.05720.97
5.5.260.0100.05320.76
5.5.250.0030.04020.68
5.5.240.4070.04320.07
5.4.450.0700.05019.48
5.4.440.0770.06319.40
5.4.430.0900.05319.56
5.4.420.0900.05019.23
5.4.410.0970.04019.47
5.4.400.0900.05018.80
5.4.390.0870.05019.14
5.4.380.0870.04719.16
5.4.370.0900.05019.08
5.4.360.0800.05719.16
5.4.350.0870.05019.27
5.4.340.0800.06319.12
5.4.320.0830.05319.30
5.4.310.1000.06318.99
5.4.300.0830.05319.18
5.4.290.0830.05319.27
5.4.280.0970.04318.94
5.4.270.0930.05018.81
5.4.260.1000.07018.80
5.4.250.0930.05319.11
5.4.240.0930.04719.18
5.4.230.0830.05019.20
5.4.220.0800.05718.76
5.4.210.0800.05319.27
5.4.200.0870.04718.90
5.4.190.0830.06019.18
5.4.180.0900.05019.29
5.4.170.0800.05018.77
5.4.160.0870.05019.28
5.4.150.0870.04019.19
5.4.140.0770.05016.32
5.4.130.0670.05016.34
5.4.120.0670.05016.34
5.4.110.0870.05016.38
5.4.100.0830.05316.06
5.4.90.0830.04716.49
5.4.80.0770.07716.43
5.4.70.0100.05016.37
5.4.60.0430.05316.21
5.4.50.0000.04016.31
5.4.40.0100.03316.36
5.4.30.0030.03316.20
5.4.20.0270.04716.16

preferences:
36.01 ms | 401 KiB | 5 Q