note 85451 added to function.array-merge

From: Date: Sun, 31 Aug 2008 23:41:21 +0000
Subject: note 85451 added to function.array-merge
Groups: php.notes 
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Usage of operand '+' for merging arrays: <?php $a=array( 'a'=>'a1', 'b'=>'a2', 'a3', 'a4', 'a5'); $b=array('b1', 'b2', 'a'=>'b3', 'b4'); $a+=$b; print_r($a); ?> output: Array ( [a] => a1 [b] => a2 [0] => a3 [1] => a4 [2] => a5 [3] => b5 ) numeric keys of elements of array B what not presented in array A was added. <?php $a=array('a'=>'a1','b'=>'a2','a3','a4','a5'); $b=array(100=>'b1','b2','a'=>'b3','b4'); $a+=$b; print_r($a); ?> output: [a] => a1 [b] => a2 [0] => a3 [1] => a4 [2] => a5 [100] => b1 [101] => b2 [102] => b4 autoindex for array B started from 100, these keys not present in array A, so this elements was added to array A ---- Server IP: 195.54.192.44 Probable Submitter: 127.0.0.1 ---- Manual Page -- http://www.php.net/manual/en/function.array-merge.php Edit -- https://master.php.net/note/edit/85451 Del: integrated -- https://master.php.net/note/delete/85451/integrated Del: useless -- https://master.php.net/note/delete/85451/useless Del: bad code -- https://master.php.net/note/delete/85451/bad+code Del: spam -- https://master.php.net/note/delete/85451/spam Del: non-english -- https://master.php.net/note/delete/85451/non-english Del: in docs -- https://master.php.net/note/delete/85451/in+docs Del: other reasons-- https://master.php.net/note/delete/85451 Reject -- https://master.php.net/note/reject/85451 Search -- https://master.php.net/manage/user-notes.php

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