/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

18 votes339 views6 answers
Php sort multidimensional array by value
PHP
0 vote358 views1 answer
Php convert string to chars
PHP
42 votes325 views3 answers
Split Functions.php
PHP
5 votes335 views2 answers
Laravel migration price
PHP
1 vote396 views1 answer
Require and require_once difference in php
PHP
0 vote385 views1 answer
Add code return block phpstorm
PHP
4 votes357 views2 answers
Php add to existing associative array
PHP
0 vote337 views1 answer
Php sort array by child value
PHP
0 vote334 views1 answer
The plugin generated 14 characters of unexpected output during activation. if you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin
PHP
0 vote411 views1 answer
Laravel get file to browser send
PHP Laravel