How to remove string with comma in a big string? - php

Question

I'm a newbie in PHP ,andnow I'm struck on this problem . I have a string like this :
$string = "qwe,asd,zxc,rty,fgh,vbn";
Now I want when user click to "qwe" it will remove "qwe," in $string
Ex:$string = "asd,zxc,rty,fgh,vbn";
Or remove "fhg,"
Ex:$string = "asd,zxc,rty,vbn";
I try to user str_replace but it just remove the string and still have a comma before the string like this:
$string = ",asd,zxc,rty,fgh,vbn";
Anyone can help? Thanks for reading

Answer 1

Try this out:
$break=explode(",",$string);
$new_array=array();
foreach($break as $newData)
{
if($newData!='qwe')
{
$new_array[]=$newData;
}
}
$newWord=implode(",",$new_array);
echo $newWord;

Answer 2

In order to achieve your objective, array is your best friend.
$string = "qwe,asd,zxc,rty,fgh,vbn";
$ExplodedString = explode( "," , $string ); //Explode them separated by comma
$itemToRemove = "asd";
foreach($ExplodedString as $key => $value){ //loop along the array
if( $itemToRemove == $value ){ //check if item to be removed exists in the array
unset($ExplodedString[$key]); //unset or remove is found
}
}
$NewLook = array_values($ExplodedString); //Re-index the array key
print_r($NewLook); //print the array content
$NewLookCombined = implode( "," , $NewLook);
print_r($NewLookCombined); //print the array content after combined back

Answer 3

here the solution
$string = "qwe,asd,zxc,rty,fgh,vbn";
$clickword = "vbn";
$exp = explode(",", $string);
$imp = implode(" ", $exp);
if(stripos($imp, $clickword) !== false) {
$var = str_replace($clickword," ", $imp);
}
$str = preg_replace('/\s\s+/',' ', $var);
$newexp = explode(" ", trim($str));
$newimp = implode(",", $newexp);
echo $newimp;

Answer 4

You could try preg_replace http://uk3.php.net/manual/en/function.preg-replace.php if you have the module set up. It will allow you to optionally replace trailing or leading commas easily:
preg_replace("/,*$providedString,*/i", '', "qwe,asd,zxc,rty,fgh,vbn");