/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 vote181 views2 answers
Restart php windows
PHP
0 vote175 views1 answer
How to login laravel passport with postman
PHP
0 vote160 views1 answer
Htaccess post max size
PHP
0 vote166 views2 answers
Customize laravel pagination links
PHP
0 vote160 views1 answer
Big database file into database php
PHP
1 vote196 views1 answer
SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: nodename nor servname provided, or not known
PHP
0 vote187 views1 answer
Larevel
PHP
0 vote178 views1 answer
Laravel command Retrieve a specific option
PHP
2 votes193 views1 answer
Laravel string key
PHP Laravel
4 votes183 views2 answers
Switch in laravel
PHP Laravel