Below is the PHP helper function which can be use to replace placeholders in a specified string with their actual values:

function replace_placeholders($text, $placeholders = []) {

$placeholderPrefix = ':';

foreach ($placeholders as $key => $value) {

$text = str_replace($placeholderPrefix.$key, $value, $text);

}

return $text;

}

Usage:

$text = 'Learn beginners, intermediate and advance level :LANGUAGE and associated technologies by :NAME.';
$placeholders = ['NAME' => 'PHP Tutors', 'LANGUAGE' => 'PHP'];
echo replace_placeholders($text, $placeholders);
//Output:
Learn beginners, intermediate and advance level PHP and associated technologies by PHP Tutors.

Description:

• $text is the parameter containing string in which we have placeholders :LANGUAGE and :NAME in the above example.
• $placeholders is the parameter containing placeholders as an array key and actual values as an array values.
• Using str_replace() PHP’s function we replace placeholders with their actual values like :LANGUAGE with PHP and :NAME with PHP Tutors as shown in above example.

<?php
class Post{
public $tag;
/*
other logic ...
*/
}
$post = new Post();
foreach(is_array($post->tag)?$post->tag:array() as $val) {
echo "PHP Tutors";
/*
other logic ...
*/
}
?>

Skype video and voice messaging service is awesome now you can send your questions by using Skype video or voice message to PHP Tutors.

Add us on Skype.

Skype Name: phptutors

Regards,

PHP Tutors,

Thankyou