CODEWITHSUNDEEP
php
iVirusPro
iVirusPro

Reputation: 37

How to convert empty string to zero?

I would like to convert empty strings to zero as an INT. Is it possible not to use "if" statements?

$string = "";
echo $string; // The result must be 0 as INT.

Upvotes: 1

Views: 7476

Answers (4)

treyBake
treyBake

Reputation: 6560

The only real way is to typecast: 

<?php
    $str = '';
    echo (int)$str;

However, if this is dynamically assigned then you'll have to use an if statement. But fear not, ternary exists:

echo (empty($str) ? 0 : $str);

With the thanks of Dharman, we can Elvis it up a bit:

echo $str ?: 0;

Though, note that if $str is not defined PHP will throw a undefined notice. For that reason either stick to ternary or ensure the variable is declared before usage.

Upvotes: 7

Dev
Dev

Reputation: 46

$string = "";

echo intval($string); // the int value of the string

For more info, may read: https://www.php.net/manual/en/function.intval.php

Upvotes: 1

Rakesh Jakhar
Rakesh Jakhar

Reputation: 6388

typecasting will do that

 echo (int) $string;

Working example : https://3v4l.org/CM2q7

Upvotes: 1

Vamsi
Vamsi

Reputation: 421

Hope this helps. Just typecase the string to int.

$string="";
echo (int)$string;

Upvotes: 0

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