How to replace words in an array's value with another

Question

    <?php
$array1 = array(
                1 => "Lorem ipsum w1 lorem ipsum",
                2 => "Lorem ipsum w1 lorem ipsum",
                3 => "Lorem ipsum w1 lorem w1 ipsum",
                4 => "Lorem ipsum w1 lorem ipsum",
                5 => "Lorem ipsum w1 lorem ipsum",
                );
?>

How can I replace the word "w1" with another word "w2" and then generate a new array like

    <?php
    $array1 = array(
                1 => "Lorem ipsum w2 lorem ipsum",
                2 => "Lorem ipsum w2 lorem ipsum",
                3 => "Lorem ipsum w2 lorem w2 ipsum",
                4 => "Lorem ipsum w2 lorem ipsum",
                5 => "Lorem ipsum w2 lorem ipsum",
                );
?>

Bhavik Shah · Accepted Answer · 2013-02-05 11:25:40Z

5

$res = array();
foeach($array1 as $key=>$val){
  $res[$key]   = str_replace("W1","W2",$val);
}

print_r($res);

Refer this for details about str_replace

edited Feb 5, 2013 at 11:25

Bhavik Shah

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answered Feb 5, 2013 at 11:20

Prasanth Bendra

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1 Comment

Ozzy Over a year ago

you could skip the $res[$key] part and just use $val if your foreach is $key => &$val.

Jon · Accepted Answer · 2013-02-05 11:20:21Z

4

You can do this with either str_replace or preg_replace depending on how much functionality you need.

Both of these functions accept an array as their $subject argument, so it could be as simple as

$array1 = array(...); // strings with "w1"
$array1 = str_replace('w1', 'w2', $array1);

answered Feb 5, 2013 at 11:20

Jon

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2 Comments

Peon Over a year ago

I would not recommend preg_replace for a simple task like this.

Jon Over a year ago

@DainisAbols: What is the simple task exactly? Obviously "w1" => "w2" is just an example. Perhaps in real life the regex \bw1\b would be needed?

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