PHP preg_replace

Question

* strong text *i have a string like that "x", "x,y" , "x,y,h" i want to user preg replace to remove the commas inside the double qutations and return the string as

"x", "xy" , "xyh"

Answer 1

您可以只使用常规替换。

$mystring = str_replace(",", "", $mystring);

Answer 2

您不需要在这里preg_replace() ，并且尽可能避免它

$string = str_replace(',', '', $string);

Answer 3

I use the following, which I've found is generally faster than regexp for this type of replacement

$string = '"x", "x,y" , "x,y,h"';
$temp = explode('"',$string);
$i = true;
foreach($temp as &$value) {
    //  Only replace in alternating array entries, because these are the entries inside the quotes
    if ($i = !$i) {
        $value = str_replace(',', '', $value);
    }
}
unset($value);
//  Then rebuild the original string
$string = implode('"',$temp);

Answer 4

This would work fine: http://codepad.org/lq7I5wkd

<?php
$myStr = '"x", "x,y" , "x,y,h"';
$chunks = preg_split("/\"[\s]*[,][\s]*\"/", $myStr);
for($i=0;$i<count($chunks);$i++)
   $chunks[$i] = str_replace(",","",$chunks[$i]);
echo implode('","',$chunks);

?>