How to check a url exist or not in php

Question

I want to check the url http://example.com/file.txt exist or not in php. How can I do it?

Possible duplicate of http://stackoverflow.com/questions/2280394/check-if-an-url-exists-in-php — swapnesh, Nov 05 '12 at 05:33

Landon · Accepted Answer · 2012-11-05T07:26:38.463

4

if(! @ file_get_contents('http://www.domain.com/file.txt')){
  echo 'path doesn't exist';
}

This is the easiest way to do it. If you are unfamiliar with the @, that will instruct the function to return false if it would have otherwise thrown an error

edited Nov 05 '12 at 07:26

answered Nov 05 '12 at 05:30

Landon

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OT: is there any general consensus over whether `@!` or `!@` is preferred? I use the former, and feel weird around the latter for some reason--maybe the `@` *after* an operator feels like it shouldn't work, even though it obviously should. – Tortoise Nov 05 '12 at 05:39
Fix the syntax error. and check the correct type of return. if(@file_get_contents('http://localhost/mh/t.php')===false){ echo 'path doesnt exist'; } – Mohammed H Nov 05 '12 at 05:47
Be sure you enable file_get_contents for other domains. That is done in php.ini. – ioan Nov 05 '12 at 05:48
@habeebperwad if you use an `@` and it fails, it will return `0`, not `false` - you can testing it with `if` as it is falsey, or `===0` but not `===false`. – doublesharp Nov 05 '12 at 05:52
"PHP supports one error control operator: the at sign (@). When prepended to an expression in PHP, any error messages that might be generated by that expression will be ignored.". @ won't return any value, Right? The above code will failif the url returns a file with no content. – Mohammed H Nov 05 '12 at 07:54

score 3 · Answer 2 · answered Nov 05 '12 at 05:31

3

The would use the PHP curl extension:

$ch = curl_init();                                  // set up curl
curl_setopt( $ch, CURLOPT_URL, $url );              // the url to request
if ( false===( $response = curl_exec( $ch ) ) ){    // fetch remote contents
    $error = curl_error( $ch );                  
    // doesn't exist
}
curl_close( $ch );                                  // close the resource

answered Nov 05 '12 at 05:31

doublesharp

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Yep. If file_exists doesn't work, this is the most canonically correct solution, though Landon's would also work. – Tortoise Nov 05 '12 at 05:38

Soojoo · Answer 3 · 2012-11-05T05:43:56.923

0

$filename="http://example.com/file.txt";    

if (file_exists($filename)) {
   echo "The file $filename exists";
} else {
   echo "The file $filename does not exist";
}

OR

if (fopen($filename, "r"))
{
   echo "File Exists"; 
}
else
{
   echo "Can't Connect to File";
}

edited Nov 05 '12 at 05:43

answered Nov 05 '12 at 05:32

Soojoo

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@habeebperwad try the second option in my answer – Soojoo Nov 05 '12 at 05:44

score 0 · Answer 4 · edited May 23 '17 at 11:49

Try this function on Ping site and return result in PHP.

function urlExists($url=NULL)  
    {  
        if($url == NULL) return false;  
        $ch = curl_init($url);  
        curl_setopt($ch, CURLOPT_TIMEOUT, 5);  
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);  
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);  
        $data = curl_exec($ch);  
        $httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);  
        curl_close($ch);  
        if($httpcode>=200 && $httpcode<300){  
            return true;  
        } else {  
            return false;  
        }  
    }

score 0 · Answer 5 · answered Nov 21 '14 at 09:57

I am agree with the response, I got success by doing this

$url = "http://example.com/file.txt";       
if(! @(file_get_contents($url))){
    return false;
}
$content = file_get_contents($url);
return $content;

You can follow the code to check the file exist at location or not.

How to check a url exist or not in php

5 Answers5