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?

possible duplicate of [Removing array item by value](http://stackoverflow.com/questions/1883421/removing-array-item-by-value) — toesslab, Aug 19 '14 at 05:56
Utkarsh : i want to remove `.` and `..`. but i get notice offset 0 on `For` **i** variabel value — lynx pravoka, Aug 19 '14 at 05:59
`pc-shooter` : thanks for the tag. but the answer on that is already in my code. i get error noticed offset 0. — lynx pravoka, Aug 19 '14 at 06:02
possible duplicate of [Delete an element from an array](http://stackoverflow.com/questions/369602/delete-an-element-from-an-array) — John Robertson, Aug 19 '14 at 06:02

score 1 · Accepted Answer · answered Aug 19 '14 at 06:04

1

User If .. and condition no need to use array_diff

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

answered Aug 19 '14 at 06:04

sandip patil

638
4
8

score 1 · Answer 2 · answered Aug 19 '14 at 06:07

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);
    }
}

score 0 · Answer 3 · answered Aug 19 '14 at 05:59

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 '14 at 05:59

TBI

2,789
1
17
21

`TBI` : theres wrong expression that in above codes. ||. it should be &&. thank you :) – lynx pravoka Aug 19 '14 at 06:26

Remove specific value of array

3 Answers3