Php isset

Php shorthand if isset

$var = $var ?? "default";

Source: stackoverflow.com

If exist php

if (isset($var)) {
  // Code here
}

Php see if undefined

if (isset($variable)) { /* do something */ };

Php isset

<?php

$var = '';

// This will evaluate to TRUE so the text will be printed.
if (isset($var)) {
    echo "This var is set so I will print.";
}

// In the next examples we'll use var_dump to output
// the return value of isset().

$a = "test";
$b = "anothertest";

var_dump(isset($a));      // TRUE
var_dump(isset($a, $b)); // TRUE

unset ($a);

var_dump(isset($a));     // FALSE
var_dump(isset($a, $b)); // FALSE

$foo = NULL;
var_dump(isset($foo));   // FALSE

?>

Source: php.net

Isset php

$variable=isset($otravariable);

Php isset

if (isset($val)) {
}

Similar codes

2 votes302 views1 answer
Laravel checkbox terms and conditions
PHP
0 vote322 views1 answer
Php date from mysql and date
PHP
0 vote373 views1 answer
How do I display logged-in username IF logged-in? site:wordpress.stackexchange.com
PHP Wordpress
0 vote375 views1 answer
The post function wordpress
PHP Wordpress
4 votes353 views2 answers
Laravel eloquent get data without duplicates
PHP Laravel
23 votes307 views2 answers
Take 10 character from string using php
PHP
0 vote301 views1 answer
Hoew to store a cookie php
PHP
1 vote363 views2 answers
Carbon date minus days
PHP
50 votes338 views6 answers
Add column in laravel migration
PHP
6 votes329 views4 answers
Laravel create project command
PHP Laravel