How to alter an uploaded image resolution using PHP before storing in mysql BLOB field -


i have created mysql database 'tutorial_db' , in database have created table 3 columns:

the image table in tutorial_db

i have written following code using php , html upload image file , store in longblob 'image' column , display images database in same page:

<?php //connect database $con = mysqli_connect('localhost', 'root', '', 'tutorial_db') or die('could not connect database: '.mysqli_connect_error()); ?> <!doctype html> <html> <head> <meta charset="utf-8"> <title>upload image</title> </head> <form action="image.php" method="post" enctype="multipart/form-data"> <p><input type="file" name="image"></p> <p><input type="submit" name="upload_image" value="upload"></p> </form> <?php error_reporting(0); if(isset($_post['upload_image'])) {     //check if image file uploaded or not.     if(getimagesize($_files['image']['tmp_name']) == false) {         //this block executed if non-image file or no file uploaded         echo 'please upload image!';      } else {         //this block executed if image uploaded         $image = addslashes(file_get_contents($_files['image']['tmp_name']));         $image_name = addslashes($_files['image']['name']);          //query insert images in table         if(!mysqli_query($con, "insert image(image_name, image) values('$image_name', '$image')")) {             echo "failed upload image!";         }     }     //query display images stored in image database     $record = mysqli_query($con, "select * image");     while($rows = mysqli_fetch_assoc($record)) {         echo '<img width = "20%" height = "200px" src="data:image/jpeg;base64,'.base64_encode( $rows['image'] ).'"/>';     }     mysqli_close($con); }  ?> <body> </body> </html>

it working fine images resolution lower 1920x1080. when try uploading images of resolution, example: 3840x2160 displays uploading failed error. guessing due image resolution error being displayed. there way reduce resolution of such images before storing them in mysql database?


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