/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

0 vote200 views1 answer
Laravel cookie (flash meesage for time)
PHP
0 vote218 views2 answers
Php remove specific element from array
PHP
9 votes234 views1 answer
Laravel 6 link storage with public
PHP Laravel
0 vote224 views1 answer
Wp add menu page and subpage
PHP
7 votes227 views1 answer
Laravel auth user_id
PHP Laravel
0 vote212 views1 answer
Reverse array laravel
PHP
11 votes193 views5 answers
Get count laravel
PHP
0 vote198 views1 answer
Laravel validating birthdate by 13 years old
PHP
5 votes195 views2 answers
Autoload.php
PHP
2 votes266 views1 answer
Laravel test dbms connection
PHP Laravel