<?php
/*
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.com/
*/
function movePage($num,$url){
static $http = array (
100 => "HTTP/1.1 100 Continue",
101 => "HTTP/1.1 101 Switching Protocols",
200 => "HTTP/1.1 200 OK",
201 => "HTTP/1.1 201 Created",
202 => "HTTP/1.1 202 Accepted",
203 => "HTTP/1.1 203 Non-Authoritative Information",
204 => "HTTP/1.1 204 No Content",
205 => "HTTP/1.1 205 Reset Content",
206 => "HTTP/1.1 206 Partial Content",
300 => "HTTP/1.1 300 Multiple Choices",
301 => "HTTP/1.1 301 Moved Permanently",
302 => "HTTP/1.1 302 Found",
303 => "HTTP/1.1 303 See Other",
304 => "HTTP/1.1 304 Not Modified",
305 => "HTTP/1.1 305 Use Proxy",
307 => "HTTP/1.1 307 Temporary Redirect",
400 => "HTTP/1.1 400 Bad Request",
401 => "HTTP/1.1 401 Unauthorized",
402 => "HTTP/1.1 402 Payment Required",
403 => "HTTP/1.1 403 Forbidden",
404 => "HTTP/1.1 404 Not Found",
405 => "HTTP/1.1 405 Method Not Allowed",
406 => "HTTP/1.1 406 Not Acceptable",
407 => "HTTP/1.1 407 Proxy Authentication Required",
408 => "HTTP/1.1 408 Request Time-out",
409 => "HTTP/1.1 409 Conflict",
410 => "HTTP/1.1 410 Gone",
411 => "HTTP/1.1 411 Length Required",
412 => "HTTP/1.1 412 Precondition Failed",
413 => "HTTP/1.1 413 Request Entity Too Large",
414 => "HTTP/1.1 414 Request-URI Too Large",
415 => "HTTP/1.1 415 Unsupported Media Type",
416 => "HTTP/1.1 416 Requested range not satisfiable",
417 => "HTTP/1.1 417 Expectation Failed",
500 => "HTTP/1.1 500 Internal Server Error",
501 => "HTTP/1.1 501 Not Implemented",
502 => "HTTP/1.1 502 Bad Gateway",
503 => "HTTP/1.1 503 Service Unavailable",
504 => "HTTP/1.1 504 Gateway Time-out"
);
header($http[$num]);
header ("Location: $url");
exit(0);
}
/* Move page with 301 http status code*/
movePage(301,"http://4evertutorials.blogspot.com/");
?>
Thursday, July 31, 2014
redirect with HTTP status code in php
PHP redirect script with all http status code. For further details please look at following code:
Tuesday, July 22, 2014
grab image color php
This PHP class can extract the colors of a given image file. It can read an image in the GIF, JPEG or PNG format and extracts the list of colors that are used in the pixels of the image. The class takes in account a similarity factor to consider very similar colors as if they are the same. It returns an array with the colors used in the picture sorted by the frequency of the pixels that use each color.
Save following php code as a "colorextractor.class.php" without double quotes.
Save following php code as a "colorextractor.class.php" without double quotes.
<?php
/*
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/
class ColorExtractor {
private function RGBtoHEX($rgb) {
$rgb = $rgb . ",";
preg_match("/(.*?)\,(.*?)\,(.*?)\,/", $rgb, $colors);
$r = $colors[1];
$g = $colors[2];
$b = $colors[3];
$hex = "#";
$hex .= str_pad(dechex($r), 2, "0", STR_PAD_LEFT);
$hex .= str_pad(dechex($g), 2, "0", STR_PAD_LEFT);
$hex .= str_pad(dechex($b), 2, "0", STR_PAD_LEFT);
return $hex;
}
public function getColors($img, $num, $precision, $type) {
$allArray = array();
$retArray = array();
$maxWidth = 200;
$maxHeight = 200;
$cw = 240;
$num = preg_replace('/[^0-9]/', '', $num);
$precision = preg_replace('/[^0-9]/', '', $precision);
if ($num == "") {
$num = 5;
}
if ($precision == "") {
$precision = 5;
}
if ($type != "rgb" && $type != "hex"){
$type = "rgb";
}
$det = GetImageSize($img);
if (!$det) {
return "Enter a valid Image";
}
$imgWidth = $det[0];
$imgHeight = $det[1];
if ($imgWidth > $maxWidth || $imgHeight > $maxHeight) {
if ($imgWidth > $imgHeight) {
$newWidth = $maxWidth;
$diff = round($imgWidth / $maxWidth);
$newHeight = round($imgHeight / $diff);
} else {
$newHeight = $maxHeight;
$diff = round($imgHeight / $maxHeight);
$newWidth = round($imgWidth / $diff);
}
}
if ($det[2] == 1) {
$origImage = imagecreatefromgif($img);
} else if ($det[2] == 2) {
$origImage = imagecreatefromjpeg($img);
} else if ($det[2] == 3) {
$origImage = imagecreatefrompng($img);
}
$newImage = imagecreatetruecolor($newWidth, $newHeight);
imagecopyresampled($newImage, $origImage, 0, 0, 0, 0, $newWidth, $newHeight, $imgWidth, $imgHeight);
for ($x = 0; $x < $newWidth; $x++) {
for ($y = 0; $y < $newHeight; $y++) {
$colors = imagecolorsforindex($newImage, imagecolorat($newImage, $x, $y));
$r = $colors['red'];
$g = $colors['green'];
$b = $colors['blue'];
$a = $colors['alpha'];
if (!($r > $cw && $g > $cw && $b > $cw)) {
if (!($r == 0 && $g == 0 && $b == 0)) {
$rgb = $r . "," . $g . "," . $b;
array_push($allArray, $rgb);
}
}
}
}
$count = array_count_values($allArray);
arsort($count);
$keys = array_keys($count);
for ($s = 0; $s < $num; $s++) {
$first = $keys[$s] . ",";
preg_match("/(.*?)\,(.*?)\,(.*?)\,/", $first, $colors2);
$r = $colors2[1];
$g = $colors2[2];
$b = $colors2[3];
$iS = $s + 1;
for ($i = $iS; $i < count($keys); $i++) {
$next = $keys[$i] . ",";
preg_match("/(.*?)\,(.*?)\,(.*?)\,/", $next, $colors2);
$r2 = $colors2[1];
$g2 = $colors2[2];
$b2 = $colors2[3];
if (abs($r2 - $r) < $precision || abs($g2 - $g) < $precision || abs($g2 - $g) < $precision) {
unset($keys[$i]);
}
}
$keys = array_values($keys);
}
if ($type == "hex") {
for ($j = 0; $j < $num; $j++) {
$color = $this->RGBtoHEX($keys[$j]);
array_push($retArray, $color);
}
} else if ($type == "rgb"){
for ($j = 0; $j < $num; $j++) {
array_push($retArray, $keys[$j]);
}
}
return $retArray;
}
}
?>
Usage of class:
<?php
//Require the ColorExtractor Class
require("colorextractor.class.php");
$img = "https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcRveQ2t7dRmKi1aq54eHUEto2OfDyxmfIZn--lVvye_Hxc2eJ59";
$ce = new ColorExtractor;
/*
Call the function getColors, this function gets the main colors from the image
getColors(Link to Image, Number of colors to return, minumum difference between each color, Type of return "rgb" or "hex");
*/
$colorArray = $ce->getColors($img, 5, 11, "rgb");
?>
<img src="<?php echo $img; ?>">
<br /><br />
<table width="200px" border="1">
<?php
foreach ($colorArray as $color) {
echo '<tr>';
if (substr($color, 0, 1) == "#") {
echo '<td width="50%" align="center">' . $color . '</td><td width="50%" align="center"><div style="background-color:' . $color . '; width:50px; height:50px;"></div></td>';
} else {
echo '<td width="50%" align="center">' . $color . '</td><td width="50%" align="center"><div style="background-color:rgb(' . $color . '); width:50px; height:50px;"></div></td>';
}
echo '</tr>';
}
?>
</table>
By: 4evertutorials
On 7/22/2014
Friday, July 4, 2014
resize image using php
PHP script can easily allow you to resize image using php class. If you’re looking to resize uploaded images or would want to generate thumbnails from uploaded images, then just try this php class once. It also works on transparent PNG and GIF images.
<?php
/*
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/
class ResizeImage {
var $image;
var $image_type;
function load($filename) {
$image_info = getimagesize($filename);
$this->image_type = $image_info[2];
if( $this->image_type == IMAGETYPE_JPEG ) {
$this->image = imagecreatefromjpeg($filename);
} elseif( $this->image_type == IMAGETYPE_GIF ) {
$this->image = imagecreatefromgif($filename);
} elseif( $this->image_type == IMAGETYPE_PNG ) {
$this->image = imagecreatefrompng($filename);
}
}
function save($filename, $image_type=IMAGETYPE_JPEG, $compression=75, $permissions=null) {
if( $image_type == IMAGETYPE_JPEG ) {
imagejpeg($this->image,$filename,$compression);
} elseif( $image_type == IMAGETYPE_GIF ) {
imagegif($this->image,$filename);
} elseif( $image_type == IMAGETYPE_PNG ) {
imagepng($this->image,$filename);
}
if( $permissions != null) {
chmod($filename,$permissions);
}
}
function output($image_type=IMAGETYPE_JPEG) {
if( $image_type == IMAGETYPE_JPEG ) {
imagejpeg($this->image);
} elseif( $image_type == IMAGETYPE_GIF ) {
imagegif($this->image);
} elseif( $image_type == IMAGETYPE_PNG ) {
imagepng($this->image);
}
}
function getWidth() {
return imagesx($this->image);
}
function getHeight() {
return imagesy($this->image);
}
function resizeToHeight($height) {
$ratio = $height / $this->getHeight();
$width = $this->getWidth() * $ratio;
$this->resize($width,$height);
}
function resizeToWidth($width) {
$ratio = $width / $this->getWidth();
$height = $this->getheight() * $ratio;
$this->resize($width,$height);
}
function scale($scale) {
$width = $this->getWidth() * $scale/100;
$height = $this->getheight() * $scale/100;
$this->resize($width,$height);
}
function resize($width,$height) {
$new_image = imagecreatetruecolor($width, $height);
imagecopyresampled($new_image, $this->image, 0, 0, 0, 0, $width, $height, $this->getWidth(), $this->getHeight());
$this->image = $new_image;
}
function resizeTransparentImage($width,$height) {
$new_image = imagecreatetruecolor($width, $height);
if( $this->image_type == IMAGETYPE_GIF || $this->image_type == IMAGETYPE_PNG ) {
$current_transparent = imagecolortransparent($this->image);
if($current_transparent != -1) {
$transparent_color = imagecolorsforindex($this->image, $current_transparent);
$current_transparent = imagecolorallocate($new_image, $transparent_color['red'], $transparent_color['green'], $transparent_color['blue']);
imagefill($new_image, 0, 0, $current_transparent);
imagecolortransparent($new_image, $current_transparent);
} elseif( $this->image_type == IMAGETYPE_PNG) {
imagealphablending($new_image, false);
$color = imagecolorallocatealpha($new_image, 0, 0, 0, 127);
imagefill($new_image, 0, 0, $color);
imagesavealpha($new_image, true);
}
}
imagecopyresampled($new_image, $this->image, 0, 0, 0, 0, $width, $height, $this->getWidth(), $this->getHeight());
$this->image = $new_image;
}
}
?>
Usage 1 :
The first example below will load a file named picture.jpg resize it to 250 pixels wide and 400 pixels high and resave it as picture2.jpg
The first example below will load a file named picture.jpg resize it to 250 pixels wide and 400 pixels high and resave it as picture2.jpg
<?php
/*
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/
$file_location = '/var/www/yourwebsite/uploads/'; # Image folder Path
$image = new ResizeImage();
$image->load($file_location.$file_location.'picture.jpg');
$image->resize(250,400);
$image->save('picture2.jpg');
?>
Usage 2 :
If you want to resize to a specifed width but keep the dimensions ratio the same then the script can work out the required height for you, just use the resizeToWidth function.
If you want to resize to a specifed width but keep the dimensions ratio the same then the script can work out the required height for you, just use the resizeToWidth function.
<?php
/*
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/
$file_location = '/var/www/yourwebsite/uploads/'; # Image folder Path
$image = new ResizeImage();
$image->load($file_location.'picture.jpg');
$image->resizeToWidth(250);
$image->save('picture2.jpg');
?>
Usage 3 :
You may wish to scale an image to a specified percentage like the following which will resize the image to 50% of its original width and height
You may wish to scale an image to a specified percentage like the following which will resize the image to 50% of its original width and height
<?php
/*
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/
$file_location = '/var/www/yourwebsite/uploads/'; # Image folder Path
$image = new ResizeImage();
$image->load($file_location.'picture.jpg');
$image->scale(50);
$image->save('picture2.jpg');
?>
Usage 4 :
You can of course do more than one thing at once. The following example will create two new images with heights of 200 pixels and 500 pixels
You can of course do more than one thing at once. The following example will create two new images with heights of 200 pixels and 500 pixels
<?php
/*
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/
$file_location = '/var/www/yourwebsite/uploads/'; # Image folder Path
$image = new ResizeImage();
$image->load($file_location.'picture.jpg');
$image->resizeToHeight(500);
$image->save('picture2.jpg');
$image->resizeToHeight(200);
$image->save('picture3.jpg');
?>
Usage 5 :
The output function lets you output the image straight to the browser without having to save the file. Its useful for on the fly thumbnail generation
The output function lets you output the image straight to the browser without having to save the file. Its useful for on the fly thumbnail generation
<?php
/*
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/
header('Content-Type: image/jpeg');
$file_location = '/var/www/yourwebsite/uploads/'; # Image folder Path
$image = new ResizeImage();
$image->load($file_location.'picture.jpg');
$image->resizeToWidth(150);
$image->output();
?>
Usage 6 :
Resize Transparent gif OR png images
Resize Transparent gif OR png images
<?php
/*
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/
$file_location = '/var/www/yourwebsite/uploads/'; # Image folder Path
$image = new ResizeImage();
$image->load($file_location.'picture.jpg');
$image->resizeTransparentImage(250,400);
$image->save('picture2.jpg');
?>
Usage 7 :
The following example will resize and save an image which has been uploaded via a form
The following example will resize and save an image which has been uploaded via a form
<?php
/*
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/
if( isset($_POST['submit']) ) {
$image = new ResizeImage();
$image->load($_FILES['uploaded_image']['tmp_name']);
$image->resizeToWidth(150);
$image->output();
} else {
echo '';
}
?>
If you have any queries or feedback for this script then please Leave A Response below. Thank You.
By: 4evertutorials
On 7/04/2014
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