/PHP/Use ternary operator as null coalescing operator in php

Use ternary operator as null coalescing operator in php

<?php

$a = null;

print $a ?? 'b'; // b
print "\n";

print $a ?: 'b'; // b
print "\n";

print $c ?? 'a'; // a
print "\n";

print $c ?: 'a'; // Notice: Undefined variable: c in /in/apAIb on line 14
print "\n";

$b = array('a' => null);

print $b['a'] ?? 'd'; // d
print "\n";

print $b['a'] ?: 'd'; // d
print "\n";

print $b['c'] ?? 'e'; // e
print "\n";

print $b['c'] ?: 'e'; // Notice: Undefined index: c in /in/apAIb on line 33
print "\n";

Source: stackoverflow.com

Similar codes

1 vote172 views1 answer
Types of controller in laravel
PHP Laravel
2 votes144 views1 answer
Check null in_array php
PHP
16 votes209 views2 answers
How to fetch data from database in php
PHP
0 vote168 views1 answer
Check if column has value in laravel eloquent
PHP
0 vote141 views1 answer
Create new controller laravel with model binding
PHP
0 vote131 views1 answer
Gate::before not working laravel 8
PHP
0 vote157 views1 answer
Spatie/laravel-activitylog display only changed data
PHP
1 vote192 views1 answer
Laravel artisan progress bar
PHP Laravel
-2 votes175 views1 answer
Wp get category by id
PHP Wordpress
38 votes237 views6 answers
Laravel foreign key
PHP Laravel