I made a preg_match where it accepts several characters.
At the moment I wanted to accept BREAK LINE also, when a person press ENTER to go down the line.
How do I do it?
Example of what I did:
!preg_match('#^[a-z0-9\-+, .\#*()\/]+$#i', $ads_description
It would probably be \n what you want, like this:
preg_match('#^[a-z0-9\-+, .\#*()\/\n]+$#i', $ads_description)
Of course you can use \s that will equal \n , space and tab ( \t ), so summarize the regular expression for:
preg_match('#^[a-z0-9\-+,.\#*()\/\s]+$#i', $ads_description)
Example in IDEONE: link
Just to note, a-z does not accept accents, only accepts a, e, i, o, u, b, c, d ..., letters like ã , õ , etc need to be specified, then it should look like this (to accept the letter a with accents, a short example just to understand):
preg_match('#^[a-z0-9ãáà\-+,.\#*()\/\s]+$#i', $ads_description)
But it is possible to simplify, using \p{L} (probably the data is in utf-8 then use the u modifier), like this:
<?php
$ads_description = '250.000km, Revisão feita.
Inspeccionado ate Julho 2018.
Novo kit embreagem, travoes, cardans. Encontra-se em muito bom estado.';
if (!preg_match('#^[\p{L}0-9\-+,.\#*()\/\s]+$#iu', $ads_description)) {
echo 'Erro';
} else {
echo 'Certo';
}
If underline / underscore _ can also be accepted then you could summarize a-z0-9 and _ with \w metachar (az is case insensitive, which would drop the i after # ), then this:
preg_match('#^[\w\-+,.\#*()\/\s]+$#', $ads_description)
It would be the same as:
preg_match('#^[a-z0-9\-+,.\#*()\/\s]+$#i', $ads_description)