How to Search Algorithms in PHP
Backed by a large community of software developers, the open-source PHP web programming language can be used to build web applications of all kinds, including search engines and search algorithms. One way a search page can be created is by using PHP in conjunction with asynchronous javascript, a programming language also known as AJAX.
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Instructions
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1
Create a new PHP text file by opening a plain text editor such as Microsoft's Notepad or Mac OS X's TextEdit.
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Begin the search algorithm by first defining the XML structure as follows:
<?php
$xmlDoc=new DOMDocument();
$xmlDoc->load("searchresults.xml");
$x=$xmlDoc->getElementsByName('link');
$q=$_GET("q");
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Display the search result links in the XML file by using the following PHP script:
if (strlen($q)>0)
{
$hint="";
for($i=0; $i<($x->length); $i++)
{
$y=$x->item($i)->getElementsByName ('title');
$y=$x->item($i)->getElementsByName ('URL');
if ($y->item(0)->nodeType==1)
}
}
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