How do I prevent from timedout - php

Question

I use this method to extract data from html of a website. But sometimes it gets stuck. How do I prevent it from being timedout? Like rather than giving some weird errors it should simply say; can't fetch result right now
$html = file_get_contents('https://homeshopping.pk/search.php?category%5B%5D=&search_query='.$homeshoppingSearch);
$pk_doc = new DOMDocument();
libxml_use_internal_errors(TRUE);
if(!empty($html)){
$pk_doc->loadHTML($html);
libxml_clear_errors();
$pk_xpath = new DOMXPath($pk_doc);
/
//Homeshopping
$pk_row = $pk_xpath->query('//a[#class=""]');
$pk_row2 = $pk_xpath->query('//a[#class="price"]');
$pk_row3 = $pk_xpath->query('(//a[#class="price"])//#href');
//HomeShopping
if($pk_row->length > 0){
$rowarray = array();
foreach($pk_row as $row){
$rowarray[]= $row->nodeValue;
// echo $row->nodeValue . "<br/>";
}
}
if($pk_row2->length > 0){
$row2array = array();
foreach($pk_row2 as $row2){
$row2array[]=$row2->nodeValue;
// echo $row2->nodeValue . "<br/>";
}
}
if($pk_row3->length > 0){
$row3array = array();
foreach($pk_row3 as $row3){
$row3array[]=$row3->nodeValue;
//echo $row3->nodeValue . "<br/>";
}
}
}

Answer 1

You can try using the set_time_limit function. It lets you set how long the execution time may be
Another way would be to set the time limit right in the php ini if you got the rights to edit it