How to change values in php? - php

Question

How can I change value of price (in wordpress) which is set for numeric values? I want to change the value to display text or numeric from url (scraping api)
right now my class_core.php file shows this:
Price Display
========================================================================== */
function PRICE($val){
// RETURN IF NOT NUMERIC
if(!is_numeric($val) && defined('WLT_JOBS') ){ return $val; }
if(isset($GLOBALS['CORE_THEME']['currency'])){
$seperator = "."; $sep = ","; $digs = 2;
if(is_numeric($val)){
$val = number_format($val,$digs, $seperator, $sep);
}
$val = hook_price_filter($val);
// RETURN IF EMPTY
if($val == ""){ return $val; }
// LEFT/RIGHT POSITION
if(isset($GLOBALS['CORE_THEME']['currency']['position']) && $GLOBALS['CORE_THEME']['currency']['position'] == "right"){
if(substr($val,-3) == ".00"){ $val = substr($val,0,-3); }
$val = $val.$GLOBALS['CORE_THEME']['currency']['symbol'];
}else{
$val = $GLOBALS['CORE_THEME']['currency']['symbol'].$val;
}
}

Answer 1

php is a scripting language. you dont have to declare what kind of variable you will be using. You just declare the name and the type of the variable change automatically depending on what data are you storing.

Answer 2

If you have a url that contains some information, like (www.xyz.com/dddddd/ddddd) you can use CURL to obtain a result...
(ref: http://www.jonasjohn.de/snippets/php/curl-example.htm)
function curl_download($Url){
// is cURL installed yet?
if (!function_exists('curl_init')){
die('Sorry cURL is not installed!');
}
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $Url);
curl_setopt($ch, CURLOPT_REFERER, "http://www.example.org/yay.htm");
curl_setopt($ch, CURLOPT_USERAGENT, "MozillaXYZ/1.0");
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
$output = curl_exec($ch);
curl_close($ch);
return $output;
}
and then in your code...
$url_for_value = "www.xyz.com/dddddd/ddddd";
// remember to add http colon and two slashes in front of url...
// stackoverflow tools won't let me do that here...
$val = curl_download($url_for_value);
function PRICE($val){
if(!is_numeric($val) && defined('WLT_JOBS') ){
// if not numeric, e.g. $100 , strip off non-numeric characters.
preg_match_all('/([\d]+)/', $val, $match);
// Do we have a valid number now?
if (!is_numeric($match[0]){
// perform other tests on return info from the CURL function?
return $val;
}
$val = $match[0];
}
if(isset($GLOBALS['CORE_THEME']['currency'])){ ....
Note: Its certainly admirable to have a need for a specific function, and then use that need to motivate you to learn new skills. This project assumes a certain experience in HTML, PHP and WordPress. If you don't feel comfortable in that stuff yet, that's okay, we all started knowing nothing.
Here's a possible learning roadmap:
--HTML Learn the organization of a website, elements, and how to create forms, buttons, etc...
--PHP This is a scripting language, runs on a server.
--CSS You will need this for WordPress. (Why? Because we insist on you using a child theme, and that will require to understand how CSS works. )
--JavaScript, although not absolutely required, lots of existing tools use this.
There are a lot of free tutorials on this stuff. I'd probably start at http://html.net/ or somewhere like that. Do all the tutorials.
After that you get to jump into WordPress. Start small, modify a few sites, then grow to writing your own plugins. At that point, I think you should be able to easily create the functionality you are looking for.
If not, it could well be quicker to hire the job out. eLance is your friend.