php static function run twice - php

Question

I am new in studing php static function I want to build a function, curl some contents from some url, and then process php regex to get what I need. Here is my code, but the curl part runs twice. How to modify it so that short the run durante?
$url = 'www.php.net/archive/2012.php';
if (!$url){
exit;
}
echo TestClass::getTitle1($url);
echo '<hr />';
echo TestClass::getTitle2($url);
class TestClass
{
static function getTitle1($url)
{
$data = self::getHtml($url);// run in first time
preg_match("/(<h1.*>)(.*)(<\/h1>)/",$data,$h1tags);
$h1 = $h1tags[0];
if (!$h1) return false;
return $h1;
}
static function getTitle2($url)
{
$data = self::getHtml($url);// run in second time
preg_match("/(<h2.*>)(.*)(<\/h2>)/",$data,$h2tags);
$h2 = $h2tags[0];
if (!$h2) return false;
return $h2;
}
static function getHtml($url){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$htmls = curl_exec($ch);
curl_close($ch);
if (!$htmls) return false;
return $htmls;
}
}

Answer 1

Like commented pass h1/h2 as a parameter to your function and rewrite your replace function. Or run curl outside and pass the result to your replace function.

Answer 2

Like the others told you, do not repeat yourself and use parameters.
But incase you need the method for another class you may use in the future (use one-time called data in more than one different function) i have edited it for you
<?php
class TestClass{
protected static $data;
static function getTitle1($url){
//check if $data is set or not
$data = self::$data ? self::$data : self::getHtml($url);
//do your code here
preg_match("/(<h1.*>)(.*)(<\/h1>)/",$data,$h1tags);
$h1 = $h1tags[0];
if (!$h1) return false;
return $h1;
}
static function getTitle2($url){
//check if $data is set or not
$data = self::$data ? self::$data : self::getHtml($url);
//do your code here
preg_match("/(<h1.*>)(.*)(<\/h1>)/",$data,$h1tags);
$h1 = $h1tags[0];
if (!$h1) return false;
return $h1;
}
static function getHtml($url){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$htmls = curl_exec($ch);
curl_close($ch);
if (!$htmls) return false;
//ADD THIS LINE TO YOUR CODE AS WELL
self::$data = $htmls;
return $htmls;
}
}
$url = 'www.php.net/archive/2012.php';
$class = new TestClass();
echo $class->getTitle1($url);
echo '<hr />';
echo $class->getTitle2($url);
?>