Reindexing An Array

larryg

I have seen an answer in another posting stating to use the array_values(). However, I have researched several references (including the PHP manual) as well as trying a simple example. Bottom line, the array_values() function puts ALL the values of the first array into the target array. It does not reindex automatically as the posting indicated (ThreadId 10217207).

Simple example
array
[1] value1
[2]
[3] value3
[4]
[5] value5

I want this
array
[1] value1
[2] value3
[3] value5

Now, I know I can do some simple reassignments and put only key value pairs that have a value into a new array but just wanted to know if I was missing something from that posting???

Thanks,
LarryG

rpanning

$newArray = sort($array);

Visit http://www.php.net/manual/en/function.sort.php for many other sorting options.

larryg

I have spent some time reviewing all the array functions ... and using search to find anything that referenced 'reindexing array' (or the like) ... and no real matches were found.

Actually the SORT() function does not return an array.
From the Man => void sort ( array array [, int sort_flags])
so the equation you posted is not valid.

SORT() does arrange the array in various ways, however, the empty key-value pairs are not removed from the resulting array. They are simply reordered. In fact, the empty key-value pairs wind up at the front of the array.

try this and you will see the results ...

<?php
$ar1 = array (a,b,c,d,e,f,g);
print_r ($ar1);
echo "<br>\n";
echo "<br>\n";
$ar1[3]="";
$ar1[5]="";
$ar2=$ar1;
print_r ($ar2);
echo "<br>\n";
echo "<br>\n";
sort($ar2);
print_r ($ar2);
?>

I am interested in knowing if there is a PHP function that 'compacts' the array by removing any $key that has a value of "".

Thanks for trying!

larryg

Here is the way I got around it ... but again, I was simply asking if anyone new of a 'canned' PHP function that performed the same thing.

This takes an existing array called $notes_form and cycles thru each key-value pair, checking the $value (aka $note) for an empty string. If the string is not empty, the $value is 'pushed' onto a temporary array.

foreach ($notes_form as $key=>$note)
{
if ($note != "") {array_push ($notes_temp, $note);}
}

LarryG