Quick question,
I have the following string which is a coma separated list of tags:
$tagcap = "tag1, tag2, tag3";
How do I go about obtaining a single string that looks like this:
$string = "#tag1, #tag2, #tag3;
In other words, simply adding # in front of each word?
Thanks!
Edit:
Thanks a lot, that seems perfect except it also adds a # infront of words with hyphens, for example: self-shot becomes #self-#shot, how can I fix this?
Edit 2: Thanks for fast help guys, issue fixed!
Use regular expression:
$str = preg_replace('/(\w+)/', '#$1', $str);
Update:
To include - char, use
$str = preg_replace('/([a-z0-9-]+)/i', '#$1', $str);
Where ([a-z0-9]+) will match with any letter, number, and - chars. The i flag will make it case-insensitive.
$tagcap = "tag1, tag2, self-shot";
echo preg_replace( "/([a-z0-9-_]+)/i", "#$1", $tagcap );
Which outputs:
#tag1, #tag2, #self-shot
This prefixes any series of letters, numbers, dashes (-), or underscores with a hash (#).
Try this one:
$tagcap = "tag1, tag2, tag3";
$tagcap = str_replace("t","#t",$tagcap );
echo $tagcap;
You could also use this, but this is other alternate using php functions.
<?php
$tagcap = "tag1, tag2, tag3";
$res = explode(',',$tagcap);
$values = array();
foreach($res as $key=>$value){
if(isset($value)){
$values[] = '#'.$value;
}
$finalResult = implode('',$values);
echo $finalResult;
}
?>
Here's another solution without Regex:
$string = "tag1,tag2,tag3";
function addPrefix(&$item,$key,$prefix)
{
$item = $prefix.$item;
}
$arr = explode(",",$string);
array_walk($arr,"addPrefix","#");
echo implode($arr,","); //output "#tag1,#tag2,#tag3"
