This is simple tutorial for image crop and replace
First create view file for select image
<!DOCTYPE html>
<html lang="en">
<head>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript" src="js/jquery.Jcrop.js"></script>
<script type="text/javascript" src="js/cropsetup.js"></script>
</head>
<body>
<div id="wrapper">
<div class="jc-demo-box">
<img src="uploads/Chrysanthemum.jpg" id="target" alt="[Jcrop Example]" />
<div id="form-container">
<form id="cropimg" name="cropimg" method="post" action="crop.php" target="_blank">
<input type="hidden" id="x" name="x">
<input type="hidden" id="y" name="y">
<input type="hidden" id="w" name="w">
<input type="hidden" id="h" name="h">
<input type="hidden" id="image_name" name="image_name" value="uploads/Chrysanthemum.jpg">
<input type="submit" id="submit" value="Crop Image!">
</form>
</div>
</div>
</div>
</body>
</html>
then create image crop php file
<?php
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$targ_w =$_POST['w'];
$targ_h =$_POST['h'];
$jpeg_quality = 90;
if(!isset($_POST['x']) || !is_numeric($_POST['x'])) {
die('Please select a crop area.');
}
$src = $_POST['image_name'];
$system = explode(".", $src);
if (preg_match("/jpg|jpeg/", $system[1]))
{
$src_img=imagecreatefromjpeg($src);
}
if (preg_match("/png/", $system[1]))
{
$src_img = imagecreatefrompng($src);
}
if (preg_match("/gif/", $system[1]))
{
$src_img = imagecreatefromgif($src);
}
$dst_r = ImageCreateTrueColor($targ_w, $targ_h);
imagecopyresampled($dst_r,$src_img,0,0,$_POST['x'],$_POST['y'],
$targ_w,$targ_h,$_POST['w'],$_POST['h']);
if (preg_match("/png/", $system[1]))
{
imagepng($dst_r, $_POST['image_name']);
}
else if (preg_match("/gif/", $system[1]))
{
imagegif($dst_r, $_POST['image_name']);
}
else
{
imagejpeg($dst_r, $_POST['image_name']);
}
imagedestroy($dst_r);
imagedestroy($src_img);
exit;
}
?>
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