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Current File : /home/serb/www/lib/ak_php_img.php

<?php
// -------------- RESIZE FUNCTION -------------
// Function for resizing any jpg, gif, or png image files
function ak_img_resize($target, $newcopy, $w, $h = false, $ext) {
	list($w_orig, $h_orig) = getimagesize($target);
	$scale_ratio = $w_orig / $h_orig;

	if ($h === false) {
		$h = round(($h_orig * $w) / $w_orig);
	}

	if (($w / $h) > $scale_ratio) {
		$w = $h * $scale_ratio;
	} else {
		$h = $w / $scale_ratio;
	}

	$img = "";
	$ext = strtolower($ext);
	if ($ext == "gif"){ 
		$img = imagecreatefromgif($target);
	} else if($ext =="png"){ 
		$img = imagecreatefrompng($target);
	} else { 
		$img = imagecreatefromjpeg($target);
	}

	$tci = imagecreatetruecolor($w, $h);
	// imagecopyresampled(dst_img, src_img, dst_x, dst_y, src_x, src_y, dst_w, dst_h, src_w, src_h)
	imagecopyresampled($tci, $img, 0, 0, 0, 0, $w, $h, $w_orig, $h_orig);
	if ($ext == "gif"){ 
		imagegif($tci, $newcopy);
	} else if($ext =="png"){ 
		imagepng($tci, $newcopy);
	} else { 
		imagejpeg($tci, $newcopy, 84);
	}
}


// $this->image_dst_x = $this->image_x;
// $this->image_dst_y = round(($this->image_src_y * $this->image_x) / $this->image_src_x);

// ------------- THUMBNAIL (CROP) FUNCTION -------------
// Function for creating a true thumbnail cropping from any jpg, gif, or png image files
function ak_img_thumb($target, $newcopy, $w, $h = false, $ext) {
	list($w_orig, $h_orig) = getimagesize($target);

	if ($h === false) {
		$h = round(($h_orig * $w) / $w_orig);
	}

	$src_x = ($w_orig / 2) - ($w / 2);
	$src_y = ($h_orig / 2) - ($h / 2);
	$ext = strtolower($ext);

	$img = "";
	if ($ext == "gif"){ 
		$img = imagecreatefromgif($target);
	} else if($ext =="png"){ 
		$img = imagecreatefrompng($target);
	} else { 
		$img = imagecreatefromjpeg($target);
	}

	$tci = imagecreatetruecolor($w, $h);
	imagecopyresampled($tci, $img, 0, 0, $src_x, $src_y, $w, $h, $w, $h);
	if ($ext == "gif"){ 
		imagegif($tci, $newcopy);
	} else if($ext =="png"){ 
		imagepng($tci, $newcopy);
	} else { 
		imagejpeg($tci, $newcopy, 84);
	}
}

function getRequestHeaders() {
	if (function_exists("apache_request_headers")) {
		if($headers = apache_request_headers()) {
			return $headers;

		}
	}
	$headers = array();
	
	// Grab the IF_MODIFIED_SINCE header
	if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
		$headers['If-Modified-Since'] = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
	}
	return $headers;
}

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