升级到php7需要注意的一个问题

Class Page{
public $parameter;
public function __construct($parameter=''){
$this->parameter =$parameter;
}
}

$p = new Page();

$map = ['has'=>12,'e3'=>13];

foreach($map as $key => $val) {
$p->parameter[$key] = urlencode($val);
}

print_r($p);

Page Object
(
[parameter] => Array
(
[has] => 12
[e3] => 13
)

)

PHP Warning:  Illegal string offset 'has' in /home/vagrant/www/test/foreach.php on line 15

Warning: Illegal string offset 'has' in /home/vagrant/www/test/foreach.php on line 15
PHP Warning:  Illegal string offset 'e3' in /home/vagrant/www/test/foreach.php on line 15

Warning: Illegal string offset 'e3' in /home/vagrant/www/test/foreach.php on line 15
Page Object
(
[parameter] => 1
)

Class Page{
public $parameter;
public function __construct($parameter=array()){
$this->parameter =$parameter;
}
}

$p = new Page();

$map = ['has'=>12,'e3'=>13];

foreach($map as $key => $val) {
$p->parameter[$key] = urlencode($val);
}

print_r($p);