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<?php $a=array(); if(empty($a)) echo 'empty'; // 一个有效的 json 字符串 $json [] = '{"Organization": "PHP Documentation Team"}' ; // 一个无效的 json 字符串会导致一个语法错误，在这个例子里我们使用 ' 代替了 " 作为引号 $json [] = "{'Organization': 'PHP Documentation Team'}" ; foreach ( $json as $string ) { echo 'Decoding: ' . $string ; json_decode ( $string ); switch ( json_last_error ()) { case JSON_ERROR_NONE : echo ' - No errors' ; break; case JSON_ERROR_DEPTH : echo ' - Maximum stack depth exceeded' ; break; case JSON_ERROR_STATE_MISMATCH : echo ' - Underflow or the modes mismatch' ; break; case JSON_ERROR_CTRL_CHAR : echo ' - Unexpected control character found' ; break; case JSON_ERROR_SYNTAX : echo ' - Syntax error, malformed JSON' ; break; case JSON_ERROR_UTF8 : echo ' - Malformed UTF-8 characters, possibly incorrectly encoded' ; break; default: echo ' - Unknown error' ; break; } echo PHP_EOL ; }
Output for git.master, git.master_jit, rfc.property-hooks
emptyDecoding: {"Organization": "PHP Documentation Team"} - No errors Decoding: {'Organization': 'PHP Documentation Team'} - Syntax error, malformed JSON

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