Specifying image dimesnions when uploading

[deansaddigh]

hi guys i want to set the image dimensions of an image before it gets uploaded, does anyone know how to do this.

 

Here my uploader.php

 

<?php
include("includes/connection.php");

    // Where the file is going to be placed 
    $schoolimage = "SchoolImages/";

//This path will be stored in the database as it does not contain the filename
$currentdir = getcwd();
$path = $currentdir . '/' . $schoolimage;

// Get the schoolid for the image and school linker table
$schoolid = $_POST['schoolid'];

//Get the school name
$query = "SELECT * FROM school WHERE school_id = ".$schoolid;
$result = mysql_query($query) 
	or die("Error getting school details");
$row = mysql_fetch_assoc($result);
$schoolname = $row['name']; 

//Use this path to store the path of the file in the database.
echo $filepath = $schoolimage . $schoolname;


//Create the folder if it does not already exist
if(!file_exists('SchoolImages'))
    {
        if(mkdir('SchoolImages'))
        {
            echo 'Folder ' . 'SchoolImages' . ' created.';
        }
        else
        {
            echo 'Error creating folder ' . 'SchoolImages';
        }
    }


//Store the folder for the course title.
    if(!file_exists( $filepath ))
    {
        if(mkdir( $filepath ))
        {
            echo 'Folder ' . $schoolname . ' created.';
        }
        else
        {
            echo 'Error creating folder ' . $schoolname;
        }
    }


// Where the file is going to be placed 
    $target_path = $filepath;

    // Add the original filename to our target path. Result is "uploads/filename.extension"
    $target_path = $target_path . '/' . basename( $_FILES['uploadedfile']['name']); 


if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) 
{
	echo "The file ".  basename( $_FILES['uploadedfile']['name'])." has been uploaded";
	$filename =  $_FILES['uploadedfile']['name'];

	//Store the filename, path other criteria in the database 
	$query = "INSERT INTO image(image_id, name, path)
	VALUES(0, '$filename', '$filepath')";

	//Perform the query
	$add = mysql_query($query, $conn)
		or die("Unable to add the image details to the database");
	$imageid = mysql_insert_id();

	//Store the filename, path other criteria in the database 
	$query = "INSERT INTO image_school( image_id, school_id )
	VALUES('$imageid', '$schoolid')";

	//Perform the query
	$add = mysql_query($query, $conn)
		or die("Unable to add the image details to the database");


	$message = 'Upload Successful';
	//Close the connection to the database	
	mysql_close($conn);
	header("Location: add_school_photo_form.php? message=$message");
	exit();
} 
else
{	
	$message = 'There was an error uploading the file, please try again!';

	//Close the connection to the database	
	mysql_close($conn);
	header("Location: add_school_photo_form.php? message=$message");
	exit();
}
?>

 

[scampbell]

Use getimagesize

http://php.net/manual/en/function.getimagesize.php

[litebearer]

I know its semantics, however, "BEFORE" indicates client-side.  PHP is server-side and cannot get that info until AFTER the image is uploaded.  You can use javascript to get it client-side.

 

Everthing depends upon your objective. From your code are you looking to resize the image if it is too big?

 

[scampbell]

You can use getimagesize on the temp file BEFORE moving it anywhere. If you want to use javascript I suggest asking in the javascript forum, not PHP.