PHP实例说明编写PHP代码的5个好习惯

<?php

class ResultMessage 
{
    private $severity;
    private $message;

    public function __construct($sev, $msg) 
    {
        $this->severity = $sev;
        $this->message = $msg;
    }

    public function getSeverity()
    {
        return $this->severity;
    }

    public function setSeverity($severity)
    {
        $this->severity = $severity;
    }

    public function getMessage()
    {
        return $this->message;
    }

    public function setMessage($msg)
    {
        $this->message = $msg;
    }
}

function cntMsgs($messages)
{
    $n = 0;
    /* iterate through the messages... */
    foreach($messages as $m) {
        if ($m->getSeverity() == ''Error'') {
            $n++; // add one to the result;
        }
    }
    return $n;
}

$messages = array(new ResultMessage("Error", "This is an error!"),
    new ResultMessage("Warning", "This is a warning!"),
    new ResultMessage("Error", "This is another error!"));

$errs = cntMsgs($messages);

echo("There are " . $errs . " errors in the result.\n");

?>