PHP - Check Whether Image Exist Or Not.

//database
create table mydata (
	id int(11) NOT NULL PRIMARY KEY AUTO_INCREMENT,
	fname varchar(20),	
    phoneno int(12) NOT NULL
    /*......*/
);
//class my data php

<?php

include('connect.php');
class InsertMydata {
    public function insertnow($fname, $phoneno) {
        $connect = new Connect;
        $insrt = $db -> prepare('INSERT INTO mydata (fname, phoneno) VALUES (?,?)');
		$insrt -> execute(array($fname, $phoneno));		
	}
}
?>


//insernow validate form

<?php
include('../classs/mydata.php');
//Declare data and error arrays
$errors = [];
$mydara = [];
if(!preg_match('/^[a-zA-Z]{4,15}$/', $_POST['fname'])) {
	$errors['fname'] = 'Enter full name!';
}
//this block not working even the phone exist
$connect = new Connect;
$phoneno = $_POST['phoneno'];
$checkiexist = $connect -> prepare('SELECT * FROM mydata WHERE phoneno = ?');
$checkiexist -> execute([$phoneno]);
if($checkiexist->rowCount() > 0) {
      $errors['phonenoexist'] = 'Try another phone number!';
 }
if(!empty($errors)){
      $data['success'] = false;
      $data['errors'] = $errors;
}else{
      $data['success'] = true;
      $data['message'] = 'success message!';  
      $mydata = new InsertMydata;
      $mydata -> insertnow($fname, $phoneno);
}
echo json_encode($data);

?>

//my ajax

$("#insertbtn").click( function(e) {
     var fname = $('#fname').val(),
         phoneno = $('#phoneno').val(),
           
       $.ajax({
           url: 'insertnow.php',
           type: 'POST',
           data: {fname:fname, phoneno:phoneno},
           dataType: "JSON",
           encode: true,
        }).done( function (data) {
         
         if (data.success == false) {
           if (data.errors.fname) {
                 $('#fname').append('<p class="text-danger">' + data.errors.fname + '</p>');
            } 
            if (data.errors.phonenoexist) {
              $('.card-header').append('<div class="alert alert-info alert-dismissible" role="alert">
                <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">×</span></button>'+data.errors.phonenoexist+'</div>');
            }
            } else {
             $('.card-header').append('<div class="alert alert-success alert-dismissible" role="alert"><button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">×</span></button>'+data.message+'</div>');
        }
    });
       e.preventDefault();
    });


//the problem is, the code insert data even if the phone exist why?

the problem is, the code insert data even if the phone exist why?

Edited April 8 by mahenda

Code: [Select]
$arr = array('../', 'j/', 'AcidBB/', 'fileBOMB/', 'OurHome', 'up');
foreach ($arr as $value) {
    // echo "Value: $value<br /><br />";
if (is_dir($value)) {
echo "<tr> <td>{$value}</td> <td><font color='#66FF33'>Exists</font></td></tr><br />";
} else {
echo "<tr> <td>{$value}</td> <td><font color='#FF0000'>Does Not Exist</font></td></tr><br />";
}
}
~~~ Solved after posting. Sorry. ~~~
Ok i have an Array of directories i need to check before the script installs itself, I know how to check for directories but i dont know how to scan each array in the list without calling each one seperately in Code: [Select]
If() { } Else If { } Else If { } And so on and so on... My Question is, If a For Statement is neaded, How would i go about checking each string in the Array List?

As the title says, how can i check if multiple arrays exist inside an array or not?

Any help is greatly appreciated!

 

I have a customer registration form up and running, the form allows customers to complete the forms and the data is then inserted into mysql db table via php form. I want to prevent duplicates records from already existing customers from creating a new records instead I want the customers to update their existing records in the backend. That is allow them to complete the form as normal, once they hit the submit button, the code should check if the customer first name and last name is already in the database if yes then it should update their records and if not it should insert new record to the table.

 I do not want to alert the customer that their records already exist. I do not know where to start. Please help

 Thank you so much in advance for your help.

i have error where my code should update existing data where id exist, it get updated ..but the others data is disappeared .only the data updated is remained 

$sql1 ="select*from semakan_dokumen where email='$stdEmail'";
$sqlsearch1 = mysqli_query($dbconfig,$sql1);
$resultcount1 = mysqli_num_rows($sqlsearch1);

if($resultcount1 > 0){
$query1=("UPDATE  semakan_dokumen set student_id='$noMatrik', email= '$stdEmail', surat_tawaran='$fileName', ic='$fileName1',sijil_lahir='$fileName2',sijil_spm= '$fileName3',sijil_sekolah= '$fileName4', sijil_dip= '$fileName5',sej_julai='$fileName6',bm_julai='$fileName7',muet='$fileName8', mid1='$fileName9',yuran= '$fileName10',umpa_bend1= '$fileName11',umpa_bend2='$fileName12',bpkp='$fileName13', penaja='$fileName14',kesihatan= '$fileName15', jhepa='$fileName16' where email= '$stdEmail' ");

}else{


//filezip
$query1 = "INSERT INTO semakan_dokumen (email,surat_tawaran,ic,sijil_lahir,sijil_spm,sijil_sekolah,sijil_dip,sej_julai,bm_julai,muet,mid1,yuran,umpa_bend1,umpa_bend2,bpkp,penaja,kesihatan,jhepa) VALUES ('$stdEmail','$fileName','$fileName1','$fileName2','$fileName3','$fileName4','$fileName5','$fileName6','$fileName7','$fileName8','$fileName9','$fileName10','$fileName11','$fileName12','$fileName13','$fileName14','$fileName15','$fileName16')";
}

 

Hello all,

I'm currently doing this Facebook connect module for my website. With the FBconnect, it creates a user profile on my mysql, which stores only the Facebook userid, the full name, and the thumbnail url of this user.

Currently the code works well except for this 'image url checking'.
this is my fb profile image url: http://profile.ak.fbcdn.net/hprofile-ak-snc4/hs349.snc4/41540_772137439_5612219_q.jpg

when I've added a 'XXX' at the back ( http://profile.ak.fbcdn.net/hprofile-ak-snc4/hs349.snc4/41540_772137439_5612219_qXXX.jpg ). It returns a blank instead.

On Facebook, some accounts are not genuine and they might the deleted sooner or later. So I'm trying to figure out a php script or functions which detect if the image is not the 'XXX' version.

I've tried using getimagesize() or file_get_contents() but still won't work.

any ideas?

i wanting users to be able to update there email address and check to see if the new email already exists. if the email is the same as current email ignore the check.
i have no errors showing up but if I enter a email already in the db it still accepts the new email instead of bringing the back the error message.
Code: [Select]
// email enterd from form //
$email=$_POST['email'];


$queryuser=mysql_query("SELECT * FROM members WHERE inv='$ivn' ") or die (mysql_error());
 while($info = mysql_fetch_array( $queryuser )) {
  $check=$info['email'];
 // gets current email //
}


if($check!=$email){
// if check not equal to $email check the new email address already exists//
$queryuser=mysql_query("SELECT * FROM members WHERE email='$email' ");
//$result=mysql_query($sql);
$checkuser=mysql_num_rows($queryuser);
if($checkuser != 0)
{
$error= "0";
header('LOCATION:../pages/myprofile.php?id='.$error.'');


}
}

cheers

Code: [Select]

<table border="1">
<tr>
<th>ID</th>
<th>Image</th>
</tr>

<?php

for($i=0; $i<=100; $i++)
{
$url = 'http://localhost/images/icon_'.$i.'_64x64.jpg';
echo "<tr><td>".$i."</td><td><img src='".$url."' /></td></tr>";

}

?>

</table>


So after testing this script, I get empty cells in the table if the image doesn't exist. Can someone show me how to make it display only the images that exists in that folder ?

Hi,
I have an image handling php script which works fine here if the image is actually a readable format by the php program...
Code: [Select]
<?php
//determine image type
if($this->ext == 'jpeg' || $this->ext == 'jpg') 
{
$imageObject = imagecreatefromjpeg($image); 
}
               elseif($this->ext == 'gif') 
{ 
$imageObject = imagecreatefromgif($image);
}
?>


However, I tested the script with a random gif created in photoshop and i got an ugly php error returned saying the image was not the correct type for imagecreatefromgif even tho the image was a .gif file.

In response I then tried to make a safety test, but it doesn't seem to work:
Code: [Select]
<?php
//determine image type
if($this->ext == 'jpeg' || $this->ext == 'jpg') 
{
if(imagecreatefromjpeg($image))
{
$imageObject = imagecreatefromjpeg($image); 
}
else{
//now remove the old TEMP file ($image)
unlink($image);
return 'Sorry there is a file type error with the image you are uploading.';*/
}
}
                elseif($this->ext == 'gif') 
{ 
if(imagecreatefromjpeg($image))
{
$imageObject = imagecreatefromgif($image);
}
else{
//now remove the old TEMP file ($image)
unlink($image);
return 'Sorry there is a file type error with the image you are uploading.';*/
}
}
?>

The $image can be either a jpg jpeg gif or png...

Could anyone please tell me how to correctly check if the file is in readable by the php program in this context?
Any help would be very much appreciated

What is the best/proper way to check if a supplied URL goes to an actual image?  My site will allow users to enter an image URL (like "http://example.com/images/monkey.jpg").  I will store the URL they enter in a MySQL database and then will call it up later and do some resizing to these images. 

But I don't want to try to do any resizing if the URL they supply doesn't actually go to an image, or if it's blank (i.e. the user didn't enter a URL yet). 

So basically, I will run a MySql query to pull back the contents of the column called "imageurl".  Let's say those contents are stored in a variable called $imageurl.  This is what I'm trying to accomplish....

Code: [Select]
if ($theimageurl does NOT contain a URL to an image OR is blank) {
// do this
} else {
//run my resizing code
}
I guess i could do this to check to see if it's blank, but not sure this is proper/most efficient way to check that part of the issue...

Code: [Select]
if (trim($theimageurl) == "")
But greater than the "is it blank" concern is that people may enter URLs that just to a regular website so whether it's at this point in my code (or for security, I should probably do it BEFORE inserting it into my database :/ ) so curious if there are any functions that check to see if it's an image URL or not.  I know of file_exists, but I'm pretty sure that's just checking to see if a file exists and doesn't check image URLs.

Any info/suggestions would be appreciated as always! 

And if there are any recommended functions to check/clean the user-entered URL BEFORE it's entered into the database, please share

Thanks!

I use a script for sharing links. Everything works ok, but checking for valid images can take a long time.
First through CURL method I parse certain tags (for description and title) then I use the following script to find images from the submited link:

Code: [Select]
$dom = new domDocument;
  @$dom->loadHTML('<?xml encoding="UTF-8">' . substr($content,0,35000));
  $dom->preserveWhiteSpace = false;
  $images = $dom->getElementsByTagName('img');

It sometimes happens that the images have not not a good path(depending on whether the link is permanent or not) and then use the getimagesize function that works well. But it can be very slow ...sometimes it takes 15-30 seconds.
Without function getimagesize process takes a few seconds.
Is there a better (faster) method to check whether the image is valid or not?

This topic has been moved to JavaScript Help.

http://www.phpfreaks.com/forums/index.php?topic=317810.0

What is the best/proper way to run an image URL from an external site through a check to see if the image actually exists?   I am trying to use file_exists() but it's not recognizing image URLs from external sites as existing, so there must be some other way to deal with external URLs.   In other words, the image does exist but file_exists() says it doesn't.

Can anyone help?

 
Please help before this script drives me insane.
It tries to download a skin from Minecraft.

It works fine, except, if it returns an error code, (301, 302, 404), don't download, and using my image (char.png) as a replacement.
I can get the error code, except, no matter how I compare it, it will a) still say it's 302 or b) not work at all.


Here's my code:

userskin.inc.php >
<?php
require('class.mineuser.php');
if(!isset($_GET['width']) || strlen(trim($_GET['width'])) == 0 || !isset($_GET['height']) || strlen(trim($_GET['height'])) == 0) {
$x = 16;
$y = 16;
} else {
$x = $_GET['width'];
$y = $_GET['height'];
}

if(isset($_GET['refresh'])) 
$refresh = true;
else
$refresh = false;

if(isset($_GET['debug'])) 
$debug = true;
else
$debug = false;

$http = curl_init("http://www.minecraft.net/skin/{$_GET['user']}.png");
curl_setopt($http, CURLOPT_RETURNTRANSFER, 1);
$result = curl_exec($http);
$http_status = curl_getinfo($http, CURLINFO_HTTP_CODE);
$resp = preg_match("/302/", $http_status, $match);
$code = $match[0];
if($code == 302) {
mineuser::downloadSkin($_GET['user'], $_GET['path'], $code, $refresh);
mineuser::getFace($_GET['user'].".png", $x, $y, $_GET['path'], $code, $debug);
} else {
mineuser::getFace("char.png", $x, $y, $_GET['path'], $code, $debug);
}

class.mineuser.php >
<?php
class mineuser {
public static function downloadSkin($user, $path = "", $resp, $new = false) {
if($resp !== 302) {
//Checks if $new is true, if it is, then delete $user.png and download a new one.
if($new == true) unlink("$path/$user.png");

//Checks if the users skin already exists (faster loading time)
if(!file_exists("$path/$user.png")) { 
$fh = fopen("$path/$user.png", "w"); 
$file = file("http://www.minecraft.net/skin/$user.png");

foreach($file as $char) //Since it's an array, we use a foreach loop and write each character individually
fwrite($fh, $char);

fclose($fh); //Close our file handler. 
}
} else {

}
} //End of function downloadSkin()

public static function getFace($user, $width, $height, $path, $resp, $debug = true) {
$im = imagecreatetruecolor($width, $height);
if($debug == false) {
header("Content-type: image/png");
}
if($resp === 302) {
$image = imagecreatefrompng("$path/char.png");
} else {
$image = imagecreatefrompng("$path/$user");
}
imagecopyresampled($im, $image, 0, 0, 8, 8, $width, $height, 8, 8);

imagepng($im);
imagedestroy($im);

} //End of function getFace()
}
?>


please help before i go insane 

Thanks in advance 

I found the code below which checks to make sure something the user entered into a text field is an actual URL.  I am looking to confirm that something a user enters is an actual link to an IMAGE, so does anyone know how I could adjust this code below to do that?

Basically, this code below would accept http://monkeys.com AND http://monkeys.com/images/monkey.jpg.

I want to alter the code so that http://monkeys.com would NOT be accepted since it's not an image.  Essentially, I want to make sure whatever the user enters ends with .jpg, .gif or .png.

Anyone know how to do this?

Code: [Select]
url": {
                    "regex": /^(https?|ftp):\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/,
                    "alertText": "* Invalid URL"
                }