PHP replace spaces in a string with dashes.

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In order to replace the spaces in a string with dashes, we can use preg_replace or str_replace(). So check the example first.

Replace space with dash using str_replace() :

<?php
	$string = "replace whitespace with dash";
	$output = str_replace(' ', '-', $string);
	
	echo $output;
?>

Output:

replace-whitespace-with-dash

Replace space with dash using preg_replace() :

<?php
	$string = "replace whitespace with dash";
	$output = preg_replace('/(?<!\s) (?!\s)/', '-', $string);
	
	echo $output;
?>
replace-whitespace-with-dash

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