php null coalesce

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Luciana
26 Jun 2016
1// The null coalescing operator (??) is used to replace the ternary operation
2// in conjunction with isset() function and returns its first operand if it
3// exists and is NOT NULL; otherwise it returns its second operand.
4$username = $_GET['username'] ?? 'not passed';
5
6// Equivalent code using ternary operator
7$username = isset($_GET['username']) ? $_GET['username'] : 'not passed';
source
María
26 Jun 2018
1// if $_POST['name'] doesn't exist $result will equal to John
2$result = $_POST['name'] ?? 'John';
source
Henri
03 Jul 2016
1        $name = $_GET['name'] ?? $user_name ?: 'anonymous';
2
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