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Added Null Coalesce Operator
https://wiki.php.net/rfc/isset_ternary git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@336682 c90b9560-bf6c-de11-be94-00142212c4b1
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@ -1291,6 +1291,14 @@ Expression: 0 = -4 << 62
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Available as of PHP 7.
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</entry>
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</row>
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<row>
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<entry>$a ?? $b ?? $c</entry>
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<entry>Null Coalesce Operator</entry>
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<entry>
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Returns the first operand from left to right that exists and not NULL.
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If nothing exsits will return NULL.
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</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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