Question

How to replace key in associative (key value) array of with PHP

Answer 1

$arr = array('a' => 888,
             'b' => 731,
             'c' => 888,
             'd' => 982,
             'e' => 888,
             'f' => 672);
  
$newkey = 'z';
$oldkey = 'd';

$arr[$newkey] = $arr[$oldkey];
unset($arr[$oldkey]);

foreach ($arr as $key => $value) {
    echo "$key - $value\n";
}
  
  
  
/*
run:
  
a - 888
b - 731
c - 888
e - 888
f - 672
z - 982
   
*/

 

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