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@NogDogMar 01.2021 — #Not claiming this is the best way to do it, more that I was curious if it would work -- which it seems to do?
It seems that it processes the first regex all the way through, then the 2nd, and so forth, so it's basically equivalent in this case of doing 3 separate, sequential "normal" calls to that function, but now crammed all into one command so that it at least _looks_ more efficient. ;)
@PeterPan_321Mar 01.2021 — #Thanks @NogDog#1628750 . I soon realized my single line solution was not going to work, and required some kind of multiple step process. So I tried the below instead. As you can see, I also was leaning toward 3 separate steps, and figured I'd better separate them for easy troubleshooting. It worked, but I kind of think my solution here is a dumb Kludge!
Like I said, it works, unless somebody sends me a message with a bunch of intentional instances of "ABCZXY" (LOL!). I've not tried using PHPs replace functions with arrays yet as you've done, but I'll give yours a try too. Right now I just realized I have another dumb issue, forcing all my PHP errors to go to that same directory, so I have to table this to figure that out. But I'll let you know if your solution works too. Thanks again!
help reformatting form “textarea” data in PHP.
I have a problem with multiple email forms in various sites. They are all submitted and processed by the same PHP module, so it makes sense to correct it there. Due to a bug in some older browsers I still support, I had to make all my mailform “textarea” fields use the “wrap=’phsyical” (same as wrap=hard) attribute. Otherwise the visitors entered text would cause the textarea to scroll horizontally at the right edge instead of “soft’ wrapping as they type. (In other words, wrap=”soft” or wrap=”virtual” wasn’t always working right in all browsers). Maybe this is no longer a problem in modern browsers, but for now I just want to correct the problem in the common PHP module.
Its easy enough to scan the PHP variable holding the textarea data, replacing all occurrences of the CR/LF combination with a space character. But when a visitor is using the form they are likely to format their message themselves, putting two line breaks where they want a paragraph break. So my routine will have to make sure that occurrences of two CR/LF combinations are left alone.
OK, this is not rocket science, and I guess I could come up with a routine to do it. But it seems like such a common problem, I though maybe it was a wheel that didn’t need to be reinvented, or maybe there is already a library function to do exactly what I’m looking for. So any suggestions are appreciated. I have an idea, but I’m not really good at regex, so don’t laugh…
“`
function removeSingleLinefeeds($string) {
return preg_replace(‘~R{1,}~’, ”, $string);
}
Thanks!
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@NogDogMar 01.2021 — #Not claiming this is the best way to do it, more that I was curious if it would work -- which it seems to do?[code=php]
$regexes = array('/(r?n){2,}/' => '<{[P]}>', '/[rn]+/' => ' ', '/<{[P]}>/' => "nn");
return preg_replace(array_keys($regexes), $regexes, $string);
[/code]It seems that it processes the first regex all the way through, then the 2nd, and so forth, so it's basically equivalent in this case of doing 3 separate, sequential "normal" calls to that function, but now crammed all into one command so that it at least _looks_ more efficient. ;)
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@PeterPan_321Mar 01.2021 — #Thanks ``<i>
</i>function removeSingleLinefeeds($string) {
$tmp = "ABCZXY"; // an unlikely string;
$data = $string;
$data = preg_replace('~R{2,}~', $tmp, $data); // swap multi linefeeds with tmp
$data = preg_replace('~R~', ' ', $data); // swap single linefeeds with space
$data = str_replace ( $tmp , "rnrn", $data); // swap multi LFs with doubles
return $data;
}<i>
</i>``Like I said, it works, unless somebody sends me a message with a bunch of intentional instances of "ABCZXY" (LOL!). I've not tried using PHPs replace functions with arrays yet as you've done, but I'll give yours a try too. Right now I just realized I have another dumb issue, forcing all my PHP errors to go to that same directory, so I have to table this to figure that out. But I'll let you know if your solution works too. Thanks again!