Solved: search and delete a blank value into array php

What kind of an array is this, string or what?
If this is string for example you start a loop that checks if the value is empty (null) delete it.
for ($i=0 ; $i< array_length; $i++)
if(Array[$i] == '') delete Array[$i]

or something like this.

Note this is only pseocode

DavidSingleton

This will do it.

foreach($array as $key => $val)  {
  if($val == "")
   {
     unset($array[$key]);
    }
}

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Ionut A. Tudor

is a bit faster using array functions like array_filter() instead of iteration(for, foreach) like above examples. See below

<?php
 
$your_array = array();
 
$new_array = array_filter($your_array,create_function('$elem', 'return ($elem=="") ? "" : $elem;'));
 
print_r($new_array);
 
?>

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denny3d

ASKER

the first and secon solution dont work

this is my array:

Array
(
[0] => 1302 11022009 132V4

[1] => 00000056

[2] => 3+3/3+3BE 00001SERRAMENTI R000640 Y 2 818.0 2060.012 U=1,6 W/mqýK 0058/09

[3] => 3+3/3+3BE 00002SERRAMENTI R000640 Y 2 618.0 2060.012 U=1,6 W/mqýK 0058/09

[4] => 3+3/3+3BE 00003SERRAMENTI R000640 Y 2 603.0 2060.012 U=1,6 W/mqýK 0058/09

[5] => 4/4BE 00004SERRAMENTI R000640 Y 3 818.0 1130.015 U=1,4 W/mqýK 0058/09

[6] => 4/4BE 00005SERRAMENTI R000640 Y 1 718.0 1130.015 U=1,4 W/mqýK 0058/09

[7] => 3+3/3+3BE 00006SERRAMENTI R000640 Y 2 818.0 2060.012 U=1,6 W/mqýK 0058/09

[8] => 3+3/3+3BE 00007SERRAMENTI R000640 Y 2 618.0 2060.012 U=1,6 W/mqýK 0058/09

[9] => 3+3/3+3BE 00008SERRAMENTI R000640 Y 2 603.0 2060.012 U=1,6 W/mqýK 0058/09

[10] => 4/4BE 00009SERRAMENTI R000640 Y 1 818.0 1130.015 U=1,4 W/mqýK 0058/09

[11] => 4/4BE 00010SERRAMENTI R000640 Y 1 718.0 1130.015 U=1,4 W/mqýK 0058/09

[12] => 4/4BE 00011SERRAMENTI R000640 Y 1 818.0 1055.015 U=1,4 W/mqýK 0058/09

[13] => 3+3/3+3BE 00012SERRAMENTI R000640 Y 3 818.0 2060.012 U=1,6 W/mqýK 0058/09

[14] => 3+3/3+3BE 00013SERRAMENTI R000640 Y 4 653.0 2060.012 U=1,6 W/mqýK 0058/09

[15] => 3+3/3+3BE 00014SERRAMENTI R000640 Y 2 603.0 2060.012 U=1,6 W/mqýK 0058/09

[16] => 3+3/3+3BE 00015SERRAMENTI R000640 Y 2 553.0 2060.012 U=1,6 W/mqýK 0058/09

[17] => 3+3/3+3BE 00016SERRAMENTI R000640 Y 2 413.0 2060.012 U=1,6 W/mqýK 0058/09

[18] => 4/4BE 00017SERRAMENTI R000640 Y 2 818.0 1130.015 U=1,4 W/mqýK 0058/09

[19] => 4/4BE 00018SERRAMENTI R000640 Y 6 618.0 1130.015 U=1,4 W/mqýK 0058/09

[20] => 4/4BE 00019SERRAMENTI R000640 Y 2 603.0 1130.015 U=1,4 W/mqýK 0058/09

[21] => 3+3/3+3BE 00020SERRAMENTI R000640 Y 4 818.0 2060.012 U=1,6 W/mqýK 0058/09

[22] => 4/4BE 00021SERRAMENTI R000640 Y 1 818.0 1130.015 U=1,4 W/mqýK 0058/09

[23] => 4/4BE 00022SERRAMENTI R000640 Y 2 618.0 1130.015 U=1,4 W/mqýK 0058/09

[24] => 4/4BE 00023SERRAMENTI R000640 Y 2 603.0 1130.015 U=1,4 W/mqýK 0058/09

[25] => 3+3/3+3BE 00024SERRAMENTI R000640 Y 1 818.0 2060.012 U=1,6 W/mqýK 0058/09

[26] => 3+3/3+3BE 00025SERRAMENTI R000640 Y 4 553.0 2060.012 U=1,6 W/mqýK 0058/09

[27] => 4/4BE 00026SERRAMENTI R000640 Y 1 818.0 1130.015 U=1,4 W/mqýK 0058/09

[28] => 4/4BE 00027SERRAMENTI R000640 Y 2 618.0 1130.015 U=1,4 W/mqýK 0058/09

[29] => 4/4BE 00028SERRAMENTI R000640 Y 4 603.0 1130.015 U=1,4 W/mqýK 0058/09

[30] => 4/4BE 00029SERRAMENTI R000640 Y 1 518.0 1130.015 U=1,4 W/mqýK 0058/09

[31] => 4/4BE 00030SERRAMENTI R000640 Y 1 818.0 1055.015 U=1,4 W/mqýK 0058/09

[32] => 3+3/3+3BE 00031SERRAMENTI R000640 Y 1 818.0 2060.012 U=1,6 W/mqýK 0058/09

[33] => 3+3/3+3BE 00032SERRAMENTI R000640 Y 2 553.0 2060.012 U=1,6 W/mqýK 0058/09

[34] => 4/4BE 00033SERRAMENTI R000640 Y 2 618.0 1130.015 U=1,4 W/mqýK 0058/09

[35] => 4/4BE 00034SERRAMENTI R000640 Y 2 603.0 1130.015 U=1,4 W/mqýK 0058/09

[36] => 3+3/3+3BE 00035SERRAMENTI R000640 Y 3 818.0 2060.012 U=1,6 W/mqýK 0058/09

[37] => 3+3/3+3BE 00036SERRAMENTI R000640 Y 1 618.0 2060.012 U=1,6 W/mqýK 0058/09

[38] => 3+3/3+3BE 00037SERRAMENTI R000640 Y 2 603.0 2060.012 U=1,6 W/mqýK 0058/09

[39] => 4/4BE 00038SERRAMENTI R000640 Y 2 818.0 1130.015 U=1,4 W/mqýK 0058/09

[40] => 4/4BE 00039SERRAMENTI R000640 Y 1 618.0 1130.015 U=1,4 W/mqýK 0058/09

[41] => 3+3/3+3BE 00040SERRAMENTI R000640 Y 2 818.0 2060.012 U=1,6 W/mqýK 0058/09

[42] => 3+3/3+3BE 00041SERRAMENTI R000640 Y 2 653.0 2060.012 U=1,6 W/mqýK 0058/09

[43] => 3+3/3+3BE 00042SERRAMENTI R000640 Y 4 603.0 2060.012 U=1,6 W/mqýK 0058/09

[44] => 3+3/3+3BE 00043SERRAMENTI R000640 Y 2 413.0 2060.012 U=1,6 W/mqýK 0058/09

[45] => 3+3/3+3BE 00044SERRAMENTI R000640 Y 2 618.0 1660.012 U=1,6 W/mqýK 0058/09

[46] => 4/4BE 00045SERRAMENTI R000640 Y 2 818.0 1130.015 U=1,4 W/mqýK 0058/09

[47] => 4/4BE 00046SERRAMENTI R000640 Y 4 618.0 1130.015 U=1,4 W/mqýK 0058/09

[48] => 4/4BE 00047SERRAMENTI R000640 Y 6 603.0 1130.015 U=1,4 W/mqýK 0058/09

[49] => 4/4BE 00048SERRAMENTI R000640 Y 1 518.0 1130.015 U=1,4 W/mqýK 0058/09

[50] => 3+3/3+3BE 00049SERRAMENTI R000640 Y 1 818.0 2060.012 U=1,6 W/mqýK 0058/09

[51] => 3+3/3+3BE 00050SERRAMENTI R000640 Y 2 603.0 2060.012 U=1,6 W/mqýK 0058/09

[52] => 3+3/3+3BE 00051SERRAMENTI R000640 Y 6 553.0 2060.012 U=1,6 W/mqýK 0058/09

[53] => 3+3/3+3BE 00052SERRAMENTI R000640 Y 4 618.0 1660.012 U=1,6 W/mqýK 0058/09

[54] => 4/4BE 00053SERRAMENTI R000640 Y 1 818.0 1130.015 U=1,4 W/mqýK 0058/09

[55] => 4/4BE 00054SERRAMENTI R000640 Y 5 618.0 1130.015 U=1,4 W/mqýK 0058/09

[56] => 4/4BE 00055SERRAMENTI R000640 Y 6 603.0 1130.015 U=1,4 W/mqýK 0058/09

[57] => 4/4BE 00056SERRAMENTI R000640 Y 1 518.0 1130.015 U=1,4 W/mqýK 0058/09

[58] =>

)

I need to delete key 58

Ionut A. Tudor

can you show us your php code that its not working as i just tested my code and its ok. Cheers

denny3d

ASKER

this is the code

<?php
if(isset($_FILES['test'])){
    if(($_FILES['test']['size'] / 1024) < 500){
       	$array_file = file($_FILES['test']['tmp_name']);
		
		#cancello i valori bianchi nell'array
		
 
$new_array = array_filter($array_file,create_function('$elem', 'return ($elem=="") ? "" : $elem;'));
 
 
 
		
		}
		
		echo '<pre>';
		print_r ($array_file);
		print_r ($new_array);
		echo '</pre>';
	}
		
}
?>

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