note 95198 modified in function.str-replace by thiago

Feel free to optimize this using the while/for or anything else, but this is a bit of code that allows you to replace strings found in an associative array.

For example:
<?php
$replace = array(
'dog' => 'cat',
'apple' => 'orange'
'chevy' => 'ford'
);

$string = 'I like to eat an apple with my dog in my chevy';

echo str_replace_assoc($replace,$string);

// Echo: I like to eat an orange with my cat in my ford
?>

Here is the function:

<?php
function strReplaceAssoc(array $replace, $subject) {
   return str_replace(array_keys($replace), array_values($replace), $subject);    
}
?>

[Jun 1st, 2010 - EDIT BY thiago AT php DOT net: Function has been replaced with an updated version sent by ljelinek AT gmail DOT com]

--was--
Feel free to optimize this using the while/for or anything else, but this is a bit of code that allows you to replace strings found in an associative array.

For example:
<?php
$replace = array(
'dog' => 'cat',
'apple' => 'orange'
'chevy' => 'ford'
);

$string = 'I like to eat an apple with my dog in my chevy';

echo str_replace_assoc($replace,$string);

// Echo: I like to eat an orange with my cat in my ford
?>

Here is the function:

<?php
function str_replace_assoc($array,$string){
	$from_array = array();
	$to_array = array();
	
	foreach ($array as $k => $v){
		$from_array[] = $k;
		$to_array[] = $v;
	}
	
	return str_replace($from_array,$to_array,$string);
}
?>

http://php.net/manual/en/function.str-replace.php