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Path: /var/www/listcrawler.app/public_html/admin/helpers/ [ Home ]
File: helpers.php
<?php
/**
 * Function to generate random string.
 */
function randomString($n) {

	$generated_string = "";

	$domain = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";

	$len = strlen($domain);

	// Loop to create random string
	for ($i = 0; $i < $n; $i++) {
		// Generate a random index to pick characters
		$index = rand(0, $len - 1);

		// Concatenating the character
		// in resultant string
		$generated_string = $generated_string . $domain[$index];
	}

	return $generated_string;
}

/**
 *
 */
function getSecureRandomToken() {
	$token = bin2hex(openssl_random_pseudo_bytes(16));
	return $token;
}

/**
 * Clear Auth Cookie
 */
function clearAuthCookie() {

	unset($_COOKIE['series_id']);
	unset($_COOKIE['remember_token']);
	setcookie('series_id', null, -1, '/');
	setcookie('remember_token', null, -1, '/');
}
/**
 *
 */
function clean_input($data) {
	$data = trim($data);
	$data = stripslashes($data);
	$data = htmlspecialchars($data);
	return $data;
}

function paginationLinks($current_page, $total_pages, $base_url) {

	if ($total_pages <= 1) {
		return false;
	}

	$html = '';

	if (!empty($_GET)) {
		// We must unset $_GET[page] if previously built by http_build_query function
		unset($_GET['page']);
		// To keep the query sting parameters intact while navigating to next/prev page,
		$http_query = "?" . http_build_query($_GET);
	} else {
		$http_query = "?";
	}

	$html = '<ul class="pagination text-center">';

	if ($current_page == 1) {

		$html .= '<li class="disabled"><a>First</a></li>';
	} else {
		$html .= '<li><a href="' . $base_url . $http_query . '&page=1">First</a></li>';
	}

	// Show pagination links

	//var i = (Number(data.page) > 5 ? Number(data.page) - 4 : 1);

	if ($current_page > 10) {
		$i = $current_page - 9;
	} else {
		$i = 1;
	}

	for (; $i <= ($current_page + 9) && ($i <= $total_pages); $i++) {
		($current_page == $i) ? $li_class = ' class="active"' : $li_class = '';

		$link = $base_url . $http_query;

		$html = $html . '<li' . $li_class . '><a href="' . $link . '&page=' . $i . '">' . $i . '</a></li>';

		if ($i == $current_page + 9 && $i < $total_pages) {

			$html = $html . '<li class="disabled"><a>...</a></li>';

		}

	}

	if ($current_page == $total_pages) {
		$html .= '<li class="disabled"><a>Last</a></li>';
	} else {

		$html .= '<li><a href="' . $base_url . $http_query . '&page=' . $total_pages . '">Last</a></li>';
	}

	$html = $html . '</ul>';

	return $html;
}

function get_query_string(){

    $arr = explode("?",$_SERVER['REQUEST_URI']);
    if (count($arr) == 2){
        return "";
    }else{
        return "?".end($arr)."<br>";
    }       
}

/*
	Function resizeImage($filename_original,$filename_resized,$new_w,$new_h)
	creates a resizeImage image
	variables:
	$filename_original	Original filename
	$filename_resized	Filename of the resized image
	$new_w		width of resized image
	$new_h		height of resized image
*/	
function resizeImage($filename_original, $filename_resized, $new_w, $new_h) {
	$extension = pathinfo($filename_original, PATHINFO_EXTENSION);

	if ( preg_match("/jpg|jpeg/", $extension) ) $src_img=@imagecreatefromjpeg($filename_original);

	if ( preg_match("/png/", $extension) ) $src_img=@imagecreatefrompng($filename_original);

	if(!$src_img) return false;

	$old_w = imageSX($src_img);
	$old_h = imageSY($src_img);

	$x_ratio = $new_w / $old_w;
	$y_ratio = $new_h / $old_h;

	if ( ($old_w <= $new_w) && ($old_h <= $new_h) ) {
		$thumb_w = $old_w;
		$thumb_h = $old_h;
	}
	elseif ( $y_ratio <= $x_ratio ) {
		$thumb_w = round($old_w * $y_ratio);
		$thumb_h = round($old_h * $y_ratio);
	}
	else {
		$thumb_w = round($old_w * $x_ratio);
		$thumb_h = round($old_h * $x_ratio);
	}		

	$dst_img=ImageCreateTrueColor($thumb_w,$thumb_h);
	imagecopyresampled($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_w,$old_h); 

	if (preg_match("/png/",$extension)) imagepng($dst_img,$filename_resized); 
	else imagejpeg($dst_img,$filename_resized,100); 

	imagedestroy($dst_img); 
	imagedestroy($src_img);

	return true;
}