wp-admin/includes/class-ftp.php:586$remotefile$fp$restoptional0 function fput($remotefile, $fp, $rest=0) { if($this->_can_restore and $rest!=0) fseek($fp, $rest); $pi=pathinfo($remotefile); if($this->_type==FTP_ASCII or ($this->_type==FTP_AUTOASCII and in_array(strtoupper($pi["extension"]), $this->AutoAsciiExt))) $mode=FTP_ASCII; else $mode=FTP_BINARY; if(!$this->_data_prepare($mode)) { return FALSE; } if($this->_can_restore and $rest!=0) $this->restore($rest); if(!$this->_exec("STOR ".$remotefile, "put")) { $this->_data_close(); return FALSE; } if(!$this->_checkCode()) { $this->_data_close(); return FALSE; } $ret=$this->_data_write($mode, $fp); $this->_data_close(); if(!$this->_readmsg()) return FALSE; if(!$this->_checkCode()) return FALSE; return $ret; }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/class-ftp.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.