Download the recording file locally remotely, and the playback content is empty.

remote URL: http://cloudcallcenter-online.oss-cn-shanghai.aliyuncs.com/record/cc278f9c-104c-44d3-ac3a-0d5a85f127b6/152626432510500080329349.wav?Expires=1527220202&OSSAccessKeyId=LTAIvKWEr4DoFSqz&Signature=T2dBY2elShoYunkp4fKY1d3PC3U%3D

Code: `public function download ($url, $dir)

{
    $ch = curl_init($url);
    $fp = fopen($dir, "wb");
    curl_setopt($ch, CURLOPT_FILE, $fp);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    $res = curl_exec($ch);
    curl_close($ch);
    fclose($fp);
}`

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Mar.17,2021

file_get_contents ()

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1eb2c66-481c3.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1eb2c66-481c3.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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