PHP JSon如何读取以JSon格式接收的布尔值并在PHP上以字符串形式写入

您可以像这样使用它，其

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$str = '[{"clientId":"17295c59-4373-655a-1141-994aec1779dc","channel":"/meta/connect","connectionType":"long-polling","ext":{"fm.ack":false,"fm.sessionId":"22b0bdcf-4a35-62fc-3764-db4caeece44b"},"id":"5"}]';$arr = json_depre($str,true);if($arr[0]['ext']['fm.ack'])    // suggested by **mario**{    echo "true";    }else {    echo "false";   }