Php find String in foreach

Question

How can I find an highlight a string in a foreach?

This loops through all users of my database and I want to find all lets say $um.

$um = "Um";
foreach($users as $user){
     # find here the string um or something
     echo $user;
}

How do I accomplish this?

take a look at strpos and str_replace. try to figure out how to use it by yourself. if you need more help let us know ;) — Tanuel Mategi
– Tanuel Mategi, Commented Oct 26, 2015 at 8:24
Why not use the MySQL to do the check? WHERE user LIKE '%um%'? — Geoff Atkins
– Geoff Atkins, Commented Oct 26, 2015 at 8:24

MaggsWeb · Accepted Answer · 2015-10-26 08:24:03Z

5

In reality, I would do this in the query.. ..but

$um = "Um";

foreach($users as $user){

    if(strpos($user,$um) !== false){

        echo $user;

    }
}

strpos() returns a string position, so a return value of '0' would be a match at the beginning of the string. So, check for 'not false' http://php.net/manual/en/function.strpos.php

answered Oct 26, 2015 at 8:24

MaggsWeb

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3 Comments

Svetoslav Over a year ago

I recommend and to check the mb_strpos if the work involves different languages with special chars..

Slark Over a year ago

Why would it better to use this in the query?

MaggsWeb Over a year ago

Because it would necessitate the need for a loop, a test, and would only return the results that you want to display.

monirz · Accepted Answer · 2015-10-26 08:34:32Z

4

   $um  = "this is string contains um";

  $keyword[] = "um"; // the word/parts you wanna highlight

  $result = $um;

  foreach($keyword as $key)   {


    $result = str_replace($key, "<strong>$key</strong>", $result);
  }               


echo $result;

answered Oct 26, 2015 at 8:34

monirz

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2 Comments

Niranjan N Raju Over a year ago

Good one. This is the direct answer.

Slark Over a year ago

This worked the only thing is that it does not style single characters just the full word

Professor Abronsius · Accepted Answer · 2015-10-26 08:25:52Z

1

You could use preg_match

$um = "Um";
foreach($users as $user){
     if( preg_match( "@$um@", $user, $matches ) ) echo $user;
}

answered Oct 26, 2015 at 8:25

Professor Abronsius

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