PHP association Link Add Method _php tutorial

How to add a PHP association link

In order to optimize the inner chain, we need to add the content of the key link, that content if the link is added, how to add it?

Method One: Manually edit the Add

Method Two: Use the program to output content, without affecting the background content editing.

Here's how PHP automatically adds an associated link method and an example to the article content:

Keylinks Function Method:

Parameter one: what to work on

Parameter two: number of replacements

Return results: Processed content

Header ("Content-type:text/html;charset=utf-8"); Set encoding

$linkdatas =array (

Array (' Front-end development ', ' http://blog.kgula.com '),

Array (' Front-end design ', ' http://blog.kgula.com '),

Array (' Web Front end ', ' http://blog.kgula.com '),

Array (' Front-end blog ', ' http://blog.kgula.com '),

);

echo "before replacing
";

echo $str = ' web front-end development-focus on website front-end design and Web user experience. Front-end development, focus on web front-end development, focus on Web user experience, focus on the latest and best front-end design resources and front-end development technology professional front-end blog ';

echo "
After replacement
";

echo $str =keylinks ($STR, 2);

/**

* Associated keyword substitution

* @param txt $string original string

* @param replacenum $int Number of replacements

* @return String returns strings

*/

function Keylinks ($txt, $replacenum = ") {

Global $linkdatas;

if ($linkdatas) {

$word = $replacement = Array ();

foreach ($linkdatas as $v) {

$word 1[] = '/(?! ()/s ';

$word 2[] = $v [0];

$replacement [] = '. $v [0]. '';

}

if ($replacenum! = ") {

$txt = Preg_replace ($word 1, $replacement, $txt, $replacenum);

} else {

$txt = Str_replace ($word 2, $replacement, $txt);

}

}

return $txt;

}

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