php给每个段落添加空格的方法

<?php
//Prepends whitespace to each line of a string
function white_space( $string, $whitespace )
{
//Create an array from the string, each key having one line
$string = explode( PHP_EOL, $string );
//Loop through the array and prepend the whitespace
foreach( $string as $line => $text )
{
$string[ $line ] = $whitespace . $text;
}
//Return the string
return( implode( PHP_EOL, $string ) );
}
?>