PHP Warning: preg_match()

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follows the code:

$ER = '[\/]?([?]?pag=[a-zA-Z0-9_-]*)(&var1=[a-zA-Z0-9_-]*)?(&var2=[a-zA-Z0-9_-]*)?(&var3=[a-zA-Z0-9_-]*)?(&var4=[a-zA-Z0-9_-]*)?'; // A ER que separa as vars
$wURL = W_URL;
$http = 'http://';
if( $https || $_SERVER["SERVER_PORT"] != 80 ){
    $url_site =  str_replace('http:', 'https:', URL_SITE);
}else{
    $url_site =  URL_SITE;
}
$_save_pag = '';
//Executa o rewrite somente quando estiver definido para tal
if($doRewrite == true){

    if(empty($str) && preg_match($ER,$str,$registers)){

error:

PHP Warning: preg_match(): Unknown Modifier '?' in /home/sisv2/sis_adm/includes/functions/rewrite.func.php on line 17

php
  • 1

    What is the regular expression?

  • $ER = '[/]? ([? ]? pag=[a-za-Z0-9_-])(&var1=[a-za-Z0-9_-])?(&var2=[a-za-Z0-9_-])?(&var3=[a-za-Z0-9_-])?(&var4=[a-za-Z0-9_-]*)?';

  • 1

    Supplement the question with regular expression.

  • ready put there

1 answer

0


This error is happening because its expression must be bounded by '/' or '#'.

Soon she’d be like this:

$ER = '/[\/]?([?]?pag=[a-zA-Z0-9_-]*)(&var1=[a-zA-Z0-9_-]*)?(&var2=[a-zA-Z0-9_-]*)?(&var3=[a-zA-Z0-9_-]*)?(&var4=[a-zA-Z0-9_-]*)?/'; // A ER que separa as vars

This happens because when you specify options for their regular expression (multi-line, single line, case sensitive etc.) they are "outside" of the expression, after the second delimiter.

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