Why is this Code incorrect if the file cannot be uploaded to Alibaba Cloud?

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Function uploadopenossserver ($ filer, $ ossid = 1, $ type = 0) {global $ empire, $ dbtbpre, $ public_r, $ ftp_r, $ oss_r, $ incftp; $ pr = getossserverinfo ($ ossid); @ include (ECMS_PATH. "e/extend/aliyun/oss/sdk. class. php "); if (! $ Pr [hostname]) {if ($ pr [osstype] = '1') {$ pr [hostname] = 'oss -cn-hangzhou.aliyuncs.com ';} elseif ($ pr [osstype] = '2') {$ pr [hostname] = 'oss -cn-hangzhou-internal.aliyuncs.com ';} elseif ($ pr [osstype] = '3 ') {$ pr [hostname] = 'oss -cn-qingdao.aliyuncs.com ';} elseif ($ pr [osstype] = '4') {$ pr [hostname] = 'oss upload ';} elseif ($ pr [osstype] = '5') {$ pr [hostname] = 'oss -cn-beijing.aliyuncs.com ';} elseif ($ pr [osstype] = '6 ') {$ pr [hostname] = 'oss secret';} elseif ($ pr [osstype] = '7') {$ pr [hostname] = 'oss -cn-hongkong.aliyuncs.com ';} elseif ($ pr [osstype] = '8') {$ pr [hostname] = 'oss -cn-hongkong-internal.aliyuncs.com ';} elseif ($ pr [osstype] = '9 ') {$ pr [hostname] = 'oss -cn-shenzhen.aliyuncs.com ';} else {$ pr [hostname] = 'oss upload';} else {printerror2 ("oss node selection error, unable to synchronize ");} $ oss = new ALIOSS ($ pr [Access_Key_ID], $ pr [Access_Key_Secret], $ pr [hostname]); $ oss-> set_debug_mode (FALSE ); foreach ($ filer as $ file) {$ object = str_replace (ECMS_PATH, '', $ file); // $ truefile = RTruePathOpen ($ pr [bucket], $ filenopath ); $ oss-> upload_file_by_file ($ pr [bucket], $ object, $ file); // upload the file print_r ($ oss);} // exit OSS $ oss = NULL; return true ;}

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Function uploadopenossserver ($ filer, $ ossid = 1, $ type = 0) {global $ empire, $ dbtbpre, $ public_r, $ ftp_r, $ oss_r, $ incftp; $ pr = getossserverinfo ($ ossid); @ include (ECMS_PATH. "e/extend/aliyun/oss/sdk. class. php "); if (! $ Pr [hostname]) {if ($ pr [osstype] = '1') {$ pr [hostname] = 'oss -cn-hangzhou.aliyuncs.com ';} elseif ($ pr [osstype] = '2') {$ pr [hostname] = 'oss -cn-hangzhou-internal.aliyuncs.com ';} elseif ($ pr [osstype] = '3 ') {$ pr [hostname] = 'oss -cn-qingdao.aliyuncs.com ';} elseif ($ pr [osstype] = '4') {$ pr [hostname] = 'oss upload ';} elseif ($ pr [osstype] = '5') {$ pr [hostname] = 'oss -cn-beijing.aliyuncs.com ';} elseif ($ pr [osstype] = '6 ') {$ pr [hostname] = 'oss secret';} elseif ($ pr [osstype] = '7') {$ pr [hostname] = 'oss -cn-hongkong.aliyuncs.com ';} elseif ($ pr [osstype] = '8') {$ pr [hostname] = 'oss -cn-hongkong-internal.aliyuncs.com ';} elseif ($ pr [osstype] = '9 ') {$ pr [hostname] = 'oss -cn-shenzhen.aliyuncs.com ';} else {$ pr [hostname] = 'oss upload';} else {printerror2 ("oss node selection error, unable to synchronize ");} $ oss = new ALIOSS ($ pr [Access_Key_ID], $ pr [Access_Key_Secret], $ pr [hostname]); $ oss-> set_debug_mode (FALSE ); foreach ($ filer as $ file) {$ object = str_replace (ECMS_PATH, '', $ file); // $ truefile = RTruePathOpen ($ pr [bucket], $ filenopath ); $ oss-> upload_file_by_file ($ pr [bucket], $ object, $ file); // upload the file print_r ($ oss);} // exit OSS $ oss = NULL; return true ;}