Array search and replace

PHP
1

with the following array

$array = ([1zxc] => ‘a/abc/m.htm’, [2zac] => ‘b/attachment/d.htm’, [3c] => ‘d/dsds/hre23.htm’, [4zac] => ‘k/attachment/d.htm’);

How can i replace in the array all ‘/attachment/’ for ‘/attach/’ and get…?

$array = ([1zxc] => ‘a/abc/m.htm’, [2zac] => ‘b/attach/d.htm’, [3c] => ‘d/dsds/hre23.htm’, [4zac] => ‘k/attach/d.htm’);

2

Hmm, there seems to be a lot of work going on for a simple task. Here is how I would do it.


$subject  = array ('/attachment/teste' => '123', 'xyz/attachment/test' => '456');
// 1. replace keys
$new_keys = str_replace('/attachment/', '/attach/', array_keys($subject));
// 2. combine new keys with the original values
$replaced = array_combine($new_keys, $subject);

print_r($replaced);

P.S. In the previous post, the second key does not get changed because the word is not attachment (check the number of "t"s).

3

hi, your code works… but not in all conditions.
look at the following, it unset the first array and does not replace the second one

$array1 = array ('/attachment/([^/]+)/comment-page-([0-9]{1,})/?$' => 'index.php?attachment=$matches[1]&cpage=$matches[2] [()/trackback/?$', 'xyz/atttachment/test' => 'index.php?attachment=$matches[1]&cpage=$matches[2] [()/trackback/?$');

function replaceKeys($key)
{
    return str_replace('/attachment/', '/attach/', $key);
}


$array1 = array_flip(array_map('replaceKeys', array_flip($array1))); 
print_r($array1);

however, if it is something like this… it works for the first element of the array, not the second…

$array1 = array ('/attachment/teste' => '123', 'xyz/atttachment/test' => '456');

function replaceKeys($key)
{
    return str_replace('/attachment/', '/attach/', $key);
}


$array1 = array_flip(array_map('replaceKeys', array_flip($array1))); 
print_r($array1);
4

I don’t think there’s a function to change both the keys and values. This gets the job done:

function replaceValues($value)
{
	return str_replace('/attachment/', '/attach/', $value);
}

function replaceKeys($key)
{
	return str_replace('za', 'TW', $key);
}

$array = array_map('replaceValues', $array);
$array = array_flip(array_map('replaceKeys', array_flip($array)));
5

Many thanks!
However, I did a mistake asking for the replacement. I need the following…

$Sarray = ([1zxc] => ‘a/abc/m.htm’, [2zac] => ‘b/attachment/d.htm’, [3c] => ‘d/dsds/hre23.htm’, [4zac] => ‘k/attachment/d.htm’);

replacing za for TW

$Sarray = ([1zxc] => ‘a/abc/m.htm’, [2TWc] => ‘b/attachment/d.htm’, [3c] => ‘d/dsds/hre23.htm’, [4TWc] => ‘k/attachment/d.htm’)

Presume I have to unset the 2zac and 4zac… How is the fastest way to do it?
Thanks again…

6 
function replace($string)
{
   return str_replace('/attachment/', '/attach/', $string);
}

$array = array_map('replace', $string);