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<?php // $_GET['myvar'] is unset echo $_GET['myvar'] ?? '' == 'hello' ? "true\n" : "false\n"; // $_GET['myvar'] is set but != 'hello' $_GET['myvar'] = 'farewell'; echo $_GET['myvar'] ?? '' == 'hello' ? "true\n" : "false\n"; // $_GET['myvar'] is set and == 'hello' $_GET['myvar'] = 'hello'; echo $_GET['myvar'] ?? '' == 'hello' ? "true\n" : "false\n"; // $_GET['myvar'] is set but "falsey" $_GET['myvar'] = 0; echo $_GET['myvar'] ?? '' == 'hello' ? "true\n" : "false\n"; $_GET['myvar'] = ''; echo $_GET['myvar'] ?? '' == 'hello' ? "true\n" : "false\n";
Output for git.master, git.master_jit, rfc.property-hooks
false true true false false

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