Array and Search function

[Gi]

Hello,

I'm a new Php user.
I'm trying to use the array functions and would like to ask a suggestion, if
possible.
I wrote the following sample code:

<?php
$test[1]="tizio";
$test[2]="caio";
$test[3]="caio";
print(array_search("caio", $test));
?>

It's a simple array with a command which searches the corresponding key for
the string "caio".
As result I've 2 and not, as I thought 2, 3. Do you know is it possible to
search all the keys associated to the string "caio"? I tried also the
array_keys function but in this case the result has too much information.
I'd like to have as result only 2 and 3.
Pleace accept my apologies for the question and for the trouble.
Really many thanks for the possible suggestions.

Best,
Gi

[Laurent Duretz]

Gi a écrit :

Hello,

I'm a new Php user.
I'm trying to use the array functions and would like to ask a suggestion, if
possible.
I wrote the following sample code:

<?php
$test[1]="tizio";
$test[2]="caio";
$test[3]="caio";
print(array_search("caio", $test));
?>

It's a simple array with a command which searches the corresponding key for
the string "caio".
As result I've 2 and not, as I thought 2, 3. Do you know is it possible to
search all the keys associated to the string "caio"? I tried also the
array_keys function but in this case the result has too much information.
I'd like to have as result only 2 and 3.
Pleace accept my apologies for the question and for the trouble.
Really many thanks for the possible suggestions.

Best,
Gi

Hi,

You should use array_keys()

Laurent Duretz

[Chung Leong]

Gi wrote:

Hello,

I'm a new Php user.
I'm trying to use the array functions and would like to ask a suggestion, if
possible.
I wrote the following sample code:

<?php
$test[1]="tizio";
$test[2]="caio";
$test[3]="caio";
print(array_search("caio", $test));
?>

It's a simple array with a command which searches the corresponding key for
the string "caio".
As result I've 2 and not, as I thought 2, 3. Do you know is it possible to
search all the keys associated to the string "caio"? I tried also the
array_keys function but in this case the result has too much information.
I'd like to have as result only 2 and 3.
Pleace accept my apologies for the question and for the trouble.
Really many thanks for the possible suggestions.

Best,
Gi

The function you need is array_intersect(). Example:

$test[1]="tizio";
$test[2]="caio";
$test[3]="caio";

$search = array("caio");
var_dump(array_intersect($test, $search));