PHP 数组与字符串，变量之间的转换

list($name,$password,$static)=['admin','php123',2];
echo '用户名为:',$name,',密码为:',$password,',状态为:',"'$static'";

$content=['name'=>'张三','password'=>'php123','static'=>1];
echo '一共生成了',var_export(extract($content),true),'个变量';
echo '用户名为:',$name,',密码为:',$password,',状态为:',"'$static'";

$one='欢迎';
$two='您的到来';
$content=compact('one','two');
var_export($content);

$string='name,password,static,isadmin';
var_export(explode(',',$string));
var_export(explode(',',$string,-3));
var_export(explode(',',$string,2));

$nav = ['首页','关于我们','公司新闻','联系我们'];
echo var_export(implode($nav),true);
echo var_export(implode('|',$nav),true);