Remove Blank Items in Array PHP

Question

I have a textarea box that takes barcodes separated by a new line. When they are processed, the new lines become commas. But if somebody inputs:

with a bunch of spaces under each code as such, it then becomes

$barcode_list = 123456,,,234567

I am able to strip the commas from the end, and I have tried:

$array = explode(",", $barcode_list);
foreach($array as $item){ //Separate each item
    if ($item == "") {
        unset($item);
    }

but it doens't seem to work, I still get mysqli errors etc. Is there any way to get around this?

How do the newlines become commas? That seems a good place to fix it. — AbraCadaver, Apr 04 '16 at 20:56

score 0 · Answer 1 · answered Apr 04 '16 at 20:59

0

You're doing an unset that doesn't really affect your array.

Do this:

$array = explode(",", $barcode_list);
foreach($array as $key => $item){ //Separate each item
    if ($item == "") {
        unset($array[$key]);
    }
}

answered Apr 04 '16 at 20:59

dokgu

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Ruby Racer · Accepted Answer · 2016-04-05T16:05:56.270

0

You should first remove unnecessary commas, then explode. Fewer steps...

// every sequence of commas becomes one comma 
$barcode_list=preg_replace("/,+/",",",$barcode_list);
// explode the string into an array
$array = explode(",", $barcode_list);

edited Apr 05 '16 at 16:05

answered Apr 04 '16 at 21:02

Ruby Racer

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Remove Blank Items in Array PHP

2 Answers2