preg_match_all Array from preg_match_all

[Gingechilla]

Hello again,

 

I have some form data, which I then search through for particular code data like so:

$html2 = $_POST['fname'];
preg_match_all("/<bla>(.*)<\/bla>/", $html2, $matches40);

 

So the above searches for all the data between <bla>XXXXXX</bla> from $POST

 

Which I then print to my page using:

(Only so I can see while developing)

print_r($matches40);

 

This displays HTML output like so:

Array ( [0] => Array ( [0] => Hello [1] => My [2] => Name [3] => Is [4] => Tom ) [1] => Array ( [0] => Hello [1] => My [2] => Name [3] => Is [4] => Tom ) )

 

What I am trying to do is again use the preg_match_all function to look through the array output and find data that I want to remove. E.g. If one of the variables from $matches40 is 'Tom' I want to find and replaces this with 'Ben'.

 

I spent a day searching Google but to not success. Any help?

 

[ChemicalBliss]

Depending on your intended data you will have to sift through this could be quite an resource intensive method, but something like:

 

<?php

$matches = ... (from preg_match);
$matches_count = count($matches);

$replace_array = array(
"Tom",
"John",
"Edward"
);

$replacewith_array = array(
"Ben",
"John2",
"EdWaRd....."
);

for($i=0;$i<$matches_count;$i++){
$matches[1][$i] = str_replace($replace_array,$replacewith_array,$matches[1][$i]);
}

print_r($matches[1]);

?>

 

hope this helps

[Gingechilla]

Thanks for the fast reply,

 

It just seems to print out the following:

 

Array ( [0] => Ben [1] => Cliff [2] => Dave [3] => Ned [4] => Austin )

 

HTML Input:

<bla>Tom</bla>
<bla>Cliff</bla>
<bla>Dave</bla>
<bla>Ned</bla>
<bla>Austin</bla>

 

PHP Code:

 

$html2 = $_POST['fname'];

preg_match_all("/<bla>(.*)<\/bla>/", $html2, $matches40);
print_r($matches40);


$matches = $matches40;
$matches_count = count($matches);

$replace_array = array(
		 "Tom",
		 "John",
		 "Edward"
					   );

$replacewith_array = array(
		"Ben",
	        "John2",
		"EdWaRd....."
						   );

for($i=0;$i<$matches_count;$i++){
	$matches[1][$i] = str_replace($replace_array,$replacewith_array,$matches[1][$i]);
}

print_r($matches[1]);

 

[Gingechilla]

Oh!

 

I'm such an idiot! I did work! Thank you so much!

 

However... It only works on the first 'Tom'. If I type in Tom twice ect only the first one changes.

[Gingechilla]

Actually maybe there is something wrong with the first array:

 

preg_match_all("/<bla>(.*)<\/bla>/", $html2, $matches40);
print_r($matches40);

 

When I echo the count:

$matches = $matches40;
$matches_count = count($matches);
echo count($matches);

It only counts 2 and changes two of the 'Tom' to 'Ben'

 

--------------

HTML Input:

<bla>Tom</bla>
<bla>Tom</bla>
<bla>Tom</bla>
<bla>John</bla>
<bla>Cliff</bla>
<bla>Tom</bla>

--------------

Array Out:

Array ( [0] => Ben [1] => Ben [2] => Tom [3] => John [4] => Cliff [5] => Tom )

 

[ChemicalBliss]

Yeah no sorry about that, typo, its counting the array, not the subarray, thats why its counting two (as print_r shows there are 2 sub-arrays in the $matches array).

[Gingechilla]

OK feeling a bit silly now... but where exactly is the typo I need to change to get it to work?

[ChemicalBliss]

the count, as you said its only counting 2, because its counting the "parent" array, which has 2 "sub-arrays". But those sub-arrays each hold all the matches, so you need to count one of the sub-arrays (all the sub-arrays of preg_match will have the same number of items, but some specific items in some sub-arrays may be blank, depending on your regular expression).

 

hope this helps