wp-includes/class-pop3.php:19mail_fetch/setup.php
$ERRORpublic$TIMEOUTpublic$COUNTpublic$BUFFERpublic$FPpublic$MAILSERVERpublic$DEBUGpublic$BANNERpublic$ALLOWAPOPpublicclass POP3 { var $ERROR = ''; // Error string. var $TIMEOUT = 60; // Default timeout before giving up on a // network operation. var $COUNT = -1; // Mailbox msg count var $BUFFER = 512; // Socket buffer for socket fgets() calls. // Per RFC 1939 the returned line a POP3 // server can send is 512 bytes. var $FP = ''; // The connection to the server's // file descriptor var $MAILSERVER = ''; // Set this to hard code the server name var $DEBUG = FALSE; // set to true to echo pop3 // commands and responses to error_log // this WILL log passwords! var $BANNER = ''; // Holds the banner returned by the // pop server - used for apop() var $ALLOWAPOP = FALSE; // Allow or disallow apop() // This must be set to true // manually /** * PHP5 constructor. */ function __construct ( $server = '', $timeout = '' ) { settype($this->BUFFER,"integer"); if( !empty($server) ) { // Do not allow programs to alter MAILSERVER // if it is already specified. They can get around // this if they -really- want to, so don't count on it. if(empty($this->MAILSERVER)) $this->MAILSERVER = $server; } if(!empty($timeout)) { settype($timeout,"integer"); $this->TIMEOUT = $timeout; // Extend POP3 request timeout to the specified TIMEOUT property. if(function_exists("set_time_limit")){ set_time_limit($timeout); } } } /** * PHP4 constructor. */ public function POP3( $server = '', $timeout = '' ) { self::__construct( $server, $timeout ); } function update_timer () { // Extend POP3 request timeout to the specified TIMEOUT property. if(function_exists("set_time_limit")){ set_time_limit($this->TIMEOUT); } return true; } function connect ($server, $port = 110) { // Opens a socket to the specified server. Unless overridden, // port defaults to 110. Returns true on success, false on fail // If MAILSERVER is set, override $server with its value. if (!isset($port) || !$port) {$port = 110;} if(!empty($this->MAILSERVER)) $server = $this->MAILSERVER; if(empty($server)){ $this->ERROR = "POP3 connect: " . _("No server specified"); unset($this->FP); return false; }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-pop3.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.