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POPHP Hard time understand this function
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  1. POPHP Hard time understand this function
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    copied!<p>I have this function written by another programmer, but he quit long ago.</p> <p>I was trying to understand this function that he wrote, but I don't fully understand it.</p> <p>It's getting a <strong>token</strong> from the <strong>csv file</strong>, and the quantity should depend how much I choose. But what the <strong>force_plaform</strong> variable does? Also what the <strong>$_GET</strong> x-parameter and <strong>$_COOKIE</strong> x-parameter do?</p> <pre><code>// Get a purchaselink from a given token (if one exists) and a given csv function getPurchaseLink($token, $csvfile, $force_platform = "", $quantity = 1) { $fp = fopen($csvfile, 'r', true); $columns = fgetcsv($fp, 1024, ','); while (($row = fgetcsv($fp, 1024, ","))) { $row = array_combine($columns, $row); if ($row['purchaseToken'] == $token) { $purchaseLink = $row; break; } } // Default to pucharse link $url = http://www.purchase.com//?p1=zzM5X9k4dF%2BDzrTnixoaKw3Fg7wZ8h5pkjp%2BLEidTXBg40xOjcFj5PtPlQniMskLm0W3ti65mE2KafUifZe9dZAcE&amp;ref=purchase.com&amp;style=146&amp;ga=UA-2689090-1&amp;C1=C01507;1;0&amp;C2=C0508;0;0; if ($url) { // Convert GET x-parameters to cmp, mkey1 and mkey2 if they are present $append = ""; if((isset($_GET["x-source"])) &amp;&amp; ($_GET["x-source"] != "")) { $append = "&amp;cmp=source_" . $_GET["x-source"]; $nextParameter = "x-" . $_GET["x-source"]; $counter = 1; $searching = TRUE; while(($searching) &amp;&amp; ($counter &lt;= 2)) { if((!isset($_GET[$nextParameter])) || ($_GET[$nextParameter] == "")) { $searching = FALSE; } else { $append .= "&amp;mkey" . $counter . "=" . str_replace("x-", "", $nextParameter) . "_" . $_GET[$nextParameter]; $nextParameter = "x-" . $_GET[$nextParameter]; $counter += 1; } } } // Convert COOKIE x-parameters to cmp, mkey1 and mkey2 if they are present and there are no GET x-parameters if(($append == "") &amp;&amp; (isset($_COOKIE["x-source"])) &amp;&amp; ($_COOKIE["x-source"] != "")) { $append = "&amp;cmp=source_" . $_COOKIE["x-source"]; $nextParameter = "x-" . $_COOKIE["x-source"]; $counter = 1; $searching = TRUE; while(($searching) &amp;&amp; ($counter &lt;= 2)) { if((!isset($_COOKIE[$nextParameter])) || ($_COOKIE[$nextParameter] == "")) { $searching = FALSE; } else { $append .= "&amp;mkey" . $counter . "=" . str_replace("x-", "", $nextParameter) . "_" . $_COOKIE[$nextParameter]; $nextParameter = "x-" . $_COOKIE[$nextParameter]; $counter += 1; } } } // Return upclick purchase link return $url . $append; } if ($quantity != 1) { $url .= "&amp;quantity=" . $quantity; } // Pass on tracking parameters from URI query and cookies $append = ""; foreach($_GET as $parameter =&gt; $value) { if(strpos($parameter, "x-") === 0 || $parameter == "tracking" || $parameter == "serial" || $parameter == "affiliate") { $append .= "&amp;" . $parameter . "=" . $value; } } if (empty($append)) { foreach($_COOKIE as $parameter =&gt; $value) { if(strpos($parameter, "x-") === 0) { $append .= "&amp;" . $parameter . "=" . $value; } } } $append = str_replace("x-tracking", "tracking", $append); $append = str_replace("x-affiliate", "affiliate", $append); $append = str_replace("&amp;serial=", "&amp;x-serial=", $append); return $url . $append; } </code></pre>
 

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