Remove specific value of array

Question

I want to remove specific value of array. this's my code:

HTML

<form action="" method="post">
<input type="text" name="user">
<input type="submit" value="Watch">
</form>

PHP

$user='';

if ( isset ( $_POST['user'] ) ) { $user = $_POST['user']; }

$dir = "images/".$user.'/';

$dh = opendir ( $dir );

while ( false !== ($filename = readdir( $dh ) ) ) {
    $files[] = $filename; 
}

$files = array_diff ( $files, array('.','..') );

$e = count($files);

for ( $i=0; $i<$e; $i++ ) { echo $files[$i]; }

Output

user/.
user/..
user/HTML.txt
user/CSS.txt
user/JavaScript.txt

i tried array_diff() to remove '.' and '..'.

i get noticed offset 0 on for value by latest WAMP.

and how to make While version to For version loop that use opendir, and readdir?

Utkarsh : i want to remove . and ... but i get notice offset 0 on For i variabel value — lynx pravoka
– lynx pravoka, Commented Aug 19, 2014 at 5:59
pc-shooter : thanks for the tag. but the answer on that is already in my code. i get error noticed offset 0. — lynx pravoka
– lynx pravoka, Commented Aug 19, 2014 at 6:02

sandip patil · Accepted Answer · 2014-08-19 06:04:11Z

1

User If .. and condition no need to use array_diff

while ( false !== ($filename = readdir( $dh ) ) ) {
    if($filename != '.' && $filename != '..') {
        $files[] = $filename; 
    }
}

answered Aug 19, 2014 at 6:04

sandip patil

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Comments

Alex · Accepted Answer · 2014-08-19 06:07:37Z

1

TBI's answer is recommended, for your particular case; it makes sense to never put it in the array in the first place. However, to match the title of your question, to remove an element from an array, you should use unset:

foreach($files as $key => $file){
    if($file == '.' || $file =='..'){
        unset($key);
    }
}

answered Aug 19, 2014 at 6:07

Alex

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Comments

TBI · Accepted Answer · 2014-08-19 05:59:08Z

0

You could use if() condition, like -

while ( false !== ($filename = readdir( $dh ) ) ) {
    if($filename != '.' || $filename != '..') {
        $files[] = $filename; 
    }
}

Now, you dont need to use array_diff

answered Aug 19, 2014 at 5:59

TBI

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1 Comment

lynx pravoka Over a year ago

TBI : theres wrong expression that in above codes. ||. it should be &&. thank you :)

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