Sam Stelfox wrote:
> The following snippet is untested and using Ash's regex (it is accurate
> \s matches any white space). $content is what is getting stripped of the
> new lines and $filtered is the cleansed output. See if that does the
> trick for you.
>
> $lines = str_split(PHP_EOL, $content);
> $filtered = '';
> foreach ($lines as $line) {
> if (!preg_match('^\s*$', $line)) {
> // Splitting on the PHP_EOL characters cause it to be removed be
> sure to put it back
> $filtered .= $line . PHP_EOL;
> }
> }
>
That isn't going to work. You missed your delimiters in the first arg
for preg_match(). It requires beginning and ending delimiters around
the regex.
I would try this
$lines = preg_split('|[\n\r]|', $content);
$filtered = '';
foreach ( $lines as $line ) {
$txt = trim( $line );
if ( ! empty( $txt ) ) {
$filtered .= $line;
}
}
It is much more intense to do the preg_match inside a loop. You should
only do it once, then use less intense function calls inside the loop.
warning: completely untested... have no example input you are using...
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