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<?php echo is_bool(false); echo is_bool(null)? 1 : ' null '; echo is_bool(true); function test(){ return 0; } var_dump(test()); echo (int)(bool)""; // 0 echo 0; // "0"; var_dump((bool)(string)0); // ""?
Output for git.master, git.master_jit, rfc.property-hooks
1 null 1int(0) 00bool(false)

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