Userfile to Query (PHP class)

<?php
// Written by Calg00ne.

class parser {
    function process($szFile, $szTable) {
        $hFile = fopen($szFile, 'r');
        $szContents = fread($hFile,  filesize($szFile));
        $iLineCount = substr_count($szContents, "\r\n");
        $aLines = explode("\r\n", $szContents);
        $szQueryFields = "";
        $szQueryValues = "";

        for($i = 0; $i <= $iLineCount; $i++) {
            if(strpos($aLines[$i], "=") != false) {
                for($x = 0; $x <= strpos($aLines[$i], "="); $x++) $szQueryFields .= $aLines[$i][$x];
                for($y = strpos($aLines[$i], "="); $y <= strlen($aLines[$i]); $y++) $szQueryValues .= $aLines[$i][$y];
            }
        }

        $szQueryFields = str_replace("=", ", ", $szQueryFields);
        $szQueryValues = str_replace("=", "', '", $szQueryValues);

        $szQueryFields[strlen($szQueryFields)-2] = "";
        $szQueryFields[strlen($szQueryFields)-1] = "";

        $szQueryValues[3] = "";
        $szQueryValues[1] = "";
        $szQueryValues[2] = "";

        fclose($hFile);

        return "INSERT INTO " . $szTable . " (" . $szQueryFields . ") VALUES(" . $szQueryValues . "');";
    }
}
?>