Question

How to match whitespace carriage return and line feed using regular expression in a string with PHP

Answer 1

$regex = '/[\r\n]+/';

$string = "PHP is a general-purpose\n\rscripting language\rgeared towards\rweb development";

$split = preg_split($regex, $string);

foreach ($split as $line) {
    echo $line . PHP_EOL;
}




/*
run:

PHP is a general-purpose
scripting language
geared towards
web development

*/

 

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Answer 2

$regex = '/[\r\n]+/';

$string = "PHP is\na general-purpose\n\rscripting language\rgeared towards\rweb development";

$string = preg_replace($regex, '*', $string);

echo $string





/*
run:

PHP is*a general-purpose*scripting language*geared towards*web development

*/

 

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