Php how to use multiple parameters

Question

there are two parameters in my app, user will fill one of them, but two parameters will get posted into php,php should select non empty field and do some action! something like this.point me right direction. i think 'isset get' should not be used three times like that right?which statement to be used 'and' or 'or' statement.? i know it's stupid question! i appreciate ur help.

if (isset($_GET['Email']) && !empty($_GET['Fax'])) {
    echo "fax is empty and Email = ".$_GET['Email'];
} elseif (isset($_GET['Fax']) && !empty($_GET['Email'])) {
    echo "email is empty and Fax = ".$_GET['Fax'];
} elseif (!empty($_GET['Fax']) && !empty($_GET['Email'])) {
    echo "Fax and email is empty";
} else {
    echo"empty";
}

so if i use all of them as empty, how can i use them in remaining program? u mean something like this..if(!empty($_GET['Fax'])){ $fax = $_GET['Fax']} @iStimple — Avis
– Avis, Commented Aug 26, 2014 at 18:57
thnx @iStimple well, it's for one parameter, how about three parameters, which statement should i use 'or' or 'and'? — Avis
– Avis, Commented Aug 26, 2014 at 19:03

hsz · Accepted Answer · 2014-08-26 18:57:17Z

1

Simpler version:

$email = isset($_GET['Email']) ? $_GET['Email'] : null;
$fax   = isset($_GET['Fax'])   ? $_GET['Fax']   : null;

if (empty($email)) {
  // email empty
}
if (empty($fax)) {
  // fax empty
}

answered Aug 26, 2014 at 18:57

hsz

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3 Comments

Avis Over a year ago

? $_GET['Email'] : null; can u tell me what does it mean? please! @hsZ

hsz Over a year ago

@user3923716 It's ternary operator. Manual: php.net//manual/pl/language.operators.comparison.php

Avis Over a year ago

if both are empty, both if statements will get executed, how can i do something like if email is only empty(do something), how i can do that? @hsz

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