I\'m looking to create a PHP function that can trim each line in a long string.
For example,
function trimHereDoc($t)
{
return implode("\n", array_map('trim', explode("\n", $t)));
}
function trimHereDoc($txt)
{
return preg_replace('/^\s+|\s+$/m', '', $txt);
}
^\s+
matches whitespace at the start of a line and \s+$
matches whitespace at the end of a line. The m
flag says to do multi-line replacement so ^
and $
will match on any line of a multi-line string.
function trimHereDoc($txt)
{
return preg_replace('/^\h+|\h+$/m', '', $txt);
}
While \s+
removes empty lines, keeps \h+
each empty lines
Simple solution
<?php
$txtArray = explode("\n", $txt);
$txtArray = array_map('trim', $txtArray);
$txt = implode("\n", $txtArray);