PHP或运算符类似于javascript？ 有一个简单的方法吗？

In javascript I can pass an object literal to an object as a parameter and if a value does not exist I can refer to a default value by coding the following;

this.title = params.title || false;

Is there a similar way to do this with PHP?

I am new to PHP and I can't seem to find an answer and if there is not an easy solution like javascript has, it seems pure crazy to me!!

Is the best way in PHP to use a ternary operator with a function call?

isset($params['title']) ? $params['title'] : false;

Thanks

Don't look for an exact equivalent, because PHP's boolean operators and array access mechanism are just too different to provide that. What you want is to provide default values for an argument:

function foo(array $params) {
    $params += array('title' => false, ...);

    echo $params['title'];
}

somethig like this $title = (isset($title) && $title !== '') ? $title : false;

Or using the empty function:

empty($params['title']) ? false : $params['title'];

$x = ($myvalue == 99) ? "x is 99": "x is not 99";

PHP one liner if ... if ($myvalue == 99) {x is 99} else {x is not 99 //set value to false here}

<?php
class MyObject {
    // Default value of object property
    public $_title = null;
    // Default value of argument (constructor)
    public function __construct($title = null){
        $this->_title = $title;
    }
    // Default value of argument (setter)
    public function setTitle($title = null){
        // Always validate arguments if you're serious about what you're doing
        if(!is_null($title) and !is_string($title)){
            trigger_error('$title should be a null or a string.', E_USER_WARNING);
            return false;
        }
        $this->_title = $title;
        return true;
    }
} // class MyObject;
?>

This is how you do an object with default values. 3 ways in 1. You either default the property value in the class definition. Or you default it on the __construct assignment or in a specific setter setTitle.

But it all depends on the rest of your code. You need to forget JS in order to properly use PHP. This is a slightly stricter programming environment, even if very loose-typed. We have real classes in PHP, not imaginary function classes elephants that offer no IDE code-completion support like in JS.