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@NogDogJun 05.2022 — #
Because, in fact, you _have_ to loop through the array. Applying those functions to the array variable itself is not giving you any information about the elements of that array. Since an array is an array, not an integer,
@NogDogJun 06.2022 — #
@NogDogJun 07.2022 — #PS: Needed something to waste a few minutes, so for extra credit, here's the function made to work with multi-dimension arrays, and without explicit loops (though internally it's essentially still doing looping):
@NogDogJun 09.2022 — #@tracknut#1644603
Main advantage here is that if you don't know how many dimensions the array has, it takes care of traversing them all for you. If you did it with foreach() loops, you'd have to stick them into a recursive function -- which is not a big deal once you've grokked how to do that. :)
How to Check if Array Has An INT ?
Hi,
Without looping and checking each array value one by one, how to check if array got INT ?
I tried these. I get nothing echoed.
[code]
$array = array(‘string’,’1′,”11″,”111”,””1111″”,'”11111″‘,”‘111111′”);
if(!in_array(IS_INT($array),$array))
{
$intval = intval($array);
die($intval);
}
else
{
$intval = intval($array);
die($intval);
}
[code]
$array = array(‘string’,’1′,”11″,”111”,””1111″”,'”11111″‘,”‘111111′”);
if(!in_array(IS_INT($array),$array))
{
$intval = intval($array);
die($intval);
}
else
{
$intval = intval($array);
die($intval);
}
I know the difference between IS_INT() and IS_NUMERIC().
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@NogDogJun 05.2022 — #>@novice2022#1644518 I get nothing echoed
Because, in fact, you _have_ to loop through the array. Applying those functions to the array variable itself is not giving you any information about the elements of that array. Since an array is an array, not an integer,
is_int($any_array)false[code=text]
$ php -a
Interactive shell
php > $foo = 1;
php > $bar = '1';
php > $fubar = array(1, '1', 2, '3');
php > var_dump(is_int($foo));
bool(true)
php > var_dump(is_int($bar));
bool(false)
php > var_dump(is_int($fubar));
bool(false)
php >
[/code]0
@NogDogJun 06.2022 — #[code=php]
$test = ['one', '2', true, 3, 'foobar'];
if (has_int($test)) {
echo "It has an intn";
} else {
echo "It does NOT have an intn";
}
$test = ['one', '2', true, '3333', 'foobar'];
if (has_int($test)) {
echo "It has an intn";
} else {
echo "It does NOT have an intn";
}
function has_int(array $arr) {
foreach ($arr as $val) {
if (is_int($val)) {
return true;
}
}
return false;
}
[/code][code=text]
$ php ~/Desktop/has_int.php
It has an int
It does NOT have an int
[/code]0
@NogDogJun 07.2022 — #PS: Needed something to waste a few minutes, so for extra credit, here's the function made to work with multi-dimension arrays, and without explicit loops (though internally it's essentially still doing looping):[code=php]
function has_int(array $arr) {
$found = false;
array_walk_recursive($arr, function($val, $key) use(&$found) {
if(is_int($val)) {
$found = true;
}
}
);
return $found;
}
[/code]0
@NogDogJun 09.2022 — #Main advantage here is that if you don't know how many dimensions the array has, it takes care of traversing them all for you. If you did it with foreach() loops, you'd have to stick them into a recursive function -- which is not a big deal once you've grokked how to do that. :)