3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a= array( 'mela' => 'pera', 'pippo'=> 'pera', 'carlo'=>'banana', 'saverio'=>'pera', 'antonio'=>'banana', ); $b= array_diff_key( $a , array_unique( $a ) ); $i=0; print_r($b); foreach($b as $c => $key){ print_r($c); print_r'<br/>' print_r($key); }

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)
5.4.320.0000.03718.99
5.4.310.0130.04319.14
5.4.300.0000.07019.24
5.4.290.0070.05719.09
5.4.280.0030.05719.20
5.4.270.0030.07319.08
5.4.260.0070.05019.13
5.4.250.0070.05318.85
5.4.240.0030.06318.96
5.4.230.0000.04319.23
5.4.220.0030.03718.84
5.4.210.0000.04019.25
5.4.200.0130.05018.94
5.4.190.0030.05319.13
5.4.180.0000.03719.14
5.4.170.0070.03319.07
5.4.160.0070.07319.11
5.4.150.0070.03718.96
5.4.140.0030.05016.46
5.4.130.0000.07316.35
5.4.120.0030.05316.38
5.4.110.0000.07716.46
5.4.100.0100.04716.41
5.4.90.0070.05016.35
5.4.80.0030.05016.54
5.4.70.0030.05016.52
5.4.60.0000.04316.33
5.4.50.0030.05716.52
5.4.40.0030.06016.50
5.4.30.0030.05016.16
5.4.20.0000.03716.32
5.4.10.0030.03316.32
5.4.00.0000.03316.11
5.3.290.0070.05314.70
5.3.280.0100.07014.70
5.3.270.0000.04014.70
5.3.260.0070.07714.70
5.3.250.0000.05314.70
5.3.240.0030.08014.70
5.3.230.0100.07014.70
5.3.220.0030.07314.70
5.3.210.0070.05714.70
5.3.200.0030.07714.70
5.3.190.0070.04714.70
5.3.180.0100.05014.70
5.3.170.0030.07014.70
5.3.160.0030.07314.70
5.3.150.0030.05314.70
5.3.140.0100.07014.70
5.3.130.0070.05314.70
5.3.120.0000.04014.70
5.3.110.0030.03314.70
5.3.100.0000.03714.70
5.3.90.0000.04014.70
5.3.80.0000.03714.70
5.3.70.0070.03014.70
5.3.60.0000.03714.70
5.3.50.0000.04014.70
5.3.40.0030.03314.70
5.3.30.0000.03314.70
5.3.20.0100.02714.70
5.3.10.0030.03014.70
5.3.00.0000.03714.70
5.2.170.0000.03014.70
5.2.160.0000.02714.70
5.2.150.0000.03314.70
5.2.140.0030.02714.70
5.2.130.0030.02714.70
5.2.120.0030.02714.70
5.2.110.0000.02714.70
5.2.100.0000.03014.70
5.2.90.0030.02714.70
5.2.80.0000.03014.70
5.2.70.0000.04314.70
5.2.60.0000.03014.70
5.2.50.0030.02714.70
5.2.40.0000.02714.70
5.2.30.0070.02314.70
5.2.20.0030.02314.70
5.2.10.0030.02314.70
5.2.00.0000.02714.70
5.1.60.0000.03314.70
5.1.50.0000.02314.70
5.1.40.0000.02314.70
5.1.30.0070.02314.70
5.1.20.0030.02314.70
5.1.10.0000.02314.70
5.1.00.0000.02314.70
5.0.50.0000.02314.70
5.0.40.0000.02014.70
5.0.30.0000.03014.70
5.0.20.0000.01714.70
5.0.10.0000.02014.70
5.0.00.0000.04314.70
4.4.90.0000.01314.70
4.4.80.0000.01314.70
4.4.70.0000.01714.70
4.4.60.0000.01714.70
4.4.50.0000.01314.70
4.4.40.0030.02014.70
4.4.30.0000.01314.70
4.4.20.0000.01314.70
4.4.10.0000.02014.70
4.4.00.0000.02314.70
4.3.110.0000.01314.70
4.3.100.0000.01714.70
4.3.90.0000.01714.70
4.3.80.0030.02314.70
4.3.70.0000.02014.70
4.3.60.0000.01714.70
4.3.50.0000.01314.70
4.3.40.0030.02014.70
4.3.30.0030.01314.70
4.3.20.0000.01714.70
4.3.10.0000.02714.70
4.3.00.0000.02714.70

preferences:
142.66 ms | 1394 KiB | 7 Q