Upload an image to PHP from an iPhone - php

Question

I am uploading an image to PHP from an iPhone but in PHP the image is not visible. The image was saving in bytes.
-(void)uploadMyImage:(UIImage *)img
{
NSData *data = UIImageJPEGRepresentation(img, 90);
NSMutableString *urlString = [[NSMutableString alloc] init];
[Base64 initialize];
[urlString appendFormat:#"image=%#",[Base64 encode:data]];
NSString *baseurl = #"http://projectleads.info/spirits/images/imageupload1.php" ;
NSData *postData = [urlString dataUsingEncoding:NSUTF8StringEncoding];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSURL *url = [NSURL URLWithString:baseurl];
NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url];
[urlRequest setHTTPMethod: #"POST"];
[urlRequest setValue:postLength forHTTPHeaderField:#"Content-Length"];
[urlRequest setValue:#"application/x-www-form-urlencoded"
forHTTPHeaderField:#"Content-Type"];
[urlRequest setHTTPBody:postData];
NSURLConnection *connection = [NSURLConnection connectionWithRequest:urlRequest delegate:self];
[connection start];
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
resData=[[NSMutableData alloc]init];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[resData appendData:data];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSString* newStr = [[NSString alloc] initWithData:resData
encoding:NSUTF8StringEncoding];
}
And my php code is
<?php
$base=$_REQUEST['image'];
if(empty($base))
{
echo 'No data';
}
else
{
echo $base;
$binary=base64_decode($base);
header('Content-Type: bitmap; charset=utf-8');
// print($binary);
//$theFile = base64_decode($image_data);
$dbser='localhost';
$dbuser='spirit';
$dbpwd='123456';
$dbname='spirit';
$db= mysql_connect($dbser,$dbuser,$dbpwd);
$dbcon=mysql_select_db($dbname);
function generate_chars()
{
$num_chars = 4; //max length of random chars
$i = 0;
$my_keys = "123456789abcdefghijklmnopqrstuvwxyz"; //keys to be chosen from
$keys_length = strlen($my_keys);
$url = "";
while($i<$num_chars)
{
$rand_num = mt_rand(1, $keys_length-1);
$url .= $my_keys[$rand_num];
$i++;
}
return $url;
}
function isUnique($chars)
{
//check the uniqueness of the chars
global $link;
$q = "SELECT * FROM `url` WHERE `randname`='".$chars."'";
$r = mysql_query($q, $link);
//echo mysql_num_rows($r); die();
if( mysql_num_rows($r)>0 ):
return false;
else:
return true;
endif;
}
$chars = generate_chars();
while( !isUnique($chars) )
{
$chars = generate_chars();
}
$query=mysql_query("insert into url (randname) values ('".$chars."')");
$test=$chars.".jpg";
$file = fopen($test, 'wb');
fwrite($file, $binary);
fclose($file);
echo 'success';
echo '<img src=test.jpg>';
}
?>

Answer 1

For iPhone :
Check here How to upload Image on PHP Server
Also this Upload Image
And For converting UIImage into String using Base64 Ecoding use Base64 Ecoding Method
I hope this will helps You

Answer 2

Your PHP code is just fine, the problem is in the base 64 encoding. I have successfully uploaded an image with your code, do the following to correctly encode the data.
Copy and paste this method in your code (taken from Creating a base-64 string from NSData)
- (NSString*)base64forData:(NSData*) theData {
const uint8_t* input = (const uint8_t*)[theData bytes];
NSInteger length = [theData length];
static char table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
NSMutableData* data = [NSMutableData dataWithLength:((length + 2) / 3) * 4];
uint8_t* output = (uint8_t*)data.mutableBytes;
NSInteger i;
for (i=0; i < length; i += 3) {
NSInteger value = 0;
NSInteger j;
for (j = i; j < (i + 3); j++) {
value <<= 8;
if (j < length) {
value |= (0xFF & input[j]);
}
}
NSInteger theIndex = (i / 3) * 4;
output[theIndex + 0] = table[(value >> 18) & 0x3F];
output[theIndex + 1] = table[(value >> 12) & 0x3F];
output[theIndex + 2] = (i + 1) < length ? table[(value >> 6) & 0x3F] : '=';
output[theIndex + 3] = (i + 2) < length ? table[(value >> 0) & 0x3F] : '=';
}
return [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];
}
Now to get the encoded string do
NSString *encodedString = [[self base64forData:data] stringByReplacingOccurrencesOfString:#"+" withString:#"%2B"];
Append the encoded string as follows
[urlString appendFormat:#"image=%#", encodedString];