I've an array like $ignore_post = array("foo", "bar"); and I need to check if foo or bar is a key for $_POST (if $_POST["foo"] or $_POST["bar"] exists).
How I can do that?
Thank you in advance
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are you familiar with a thing called "loop"?Your Common Sense– Your Common Sense2011-09-21 09:08:42 +00:00Commented Sep 21, 2011 at 9:08
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@Col.Shrapnel: yes but I wanted to know if it was a way of doing without a loop :-)udexter– udexter2011-09-21 09:09:46 +00:00Commented Sep 21, 2011 at 9:09
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there is noway to deal with arrays without loops. EVEN if you don't see it, a loop is always involved. go figureYour Common Sense– Your Common Sense2011-09-21 09:11:52 +00:00Commented Sep 21, 2011 at 9:11
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3 Answers
You can use PHP function array_key_exists:
<?php
foreach($ignore_post as $key)
{
if(array_key_exists($key,$_POST))
{
// ...
}
}
?>
Alternatively you can replace array_key_exists($key,$_POST) with isset($_POST[$key])
Comments
Comments
You can do it like this
<?php foreach ($ignore_post as $value){
if(!empty($_POST[$value])){
echo 'It exists';
} else {
echo 'It does not exist or is empty'
}
}?>
<?php foreach ($ignore_post as $value){
if(isset($_POST[$value])){
echo 'It exists but might be empty';
} else {
echo 'It does not exist'
}
}?>
