CODEWITHSUNDEEP
php
Manish
Manish

Reputation: 25

Any shortcut for this code in php?

<?php
$s1="";$s2="qwe";$s3="zxc";

if(!empty($s1))
{
    $result=$s1;
}
else
{
    if(!empty($s2))
    {
        $result=$s2;
    }
    else
    {
        $result=$s3;
    }
}

echo "$result";
?>

Is there any possible code, probably of 1-2 lines, replacing the above mentioned code, I remember something like using "or" operator to do what I am doing with this code.

Upvotes: 2

Views: 90

Answers (4)

NullPoiиteя
NullPoiиteя

Reputation: 57322

$result = $s1 ? $s1 : ($s2 ? $s2 : $s3);

why use this ?

since it reduce the complicity of the program

Note: The ternary operator is evaluated from left to right. So if you don't group the expressions properly, you will get an unexpected result

Upvotes: 1

Hemi
Hemi

Reputation: 829

Use this code: 

<?

$s1="";
$s2="qwe";
$s3="zxc";

echo $result = ($s1!="") ? $s1 : ( ($s2!="") ? $s2 : $s3);

?>

Output: qwe

It's ternary operator. If you have $s1 as not empty then it returns $s1 or else again checks the condition for $s2 if it also empty then it returns $s3.

Upvotes: 0

Tadeck
Tadeck

Reputation: 137320

$result = $s1 ? $s1 : ($s2 ? $s2 : $s3);

Or even shorter, if you have PHP >5.3:

$result = $s1 ?: ($s2 ?: $s3);

More: PHP Manual part about Ternary Operator

Upvotes: 6

Hernan Velasquez
Hernan Velasquez

Reputation: 2820

Try conditional the assignment operator:

$result = !empty($s1) ? $s1 : ( !empty($s2) ? $s2 : $s3 );

Upvotes: 1

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