PHP 开启错误显示并设置错误报告级别
ini_set(‘error_reporting’, E_ALL);ini_set(‘display_errors’, ‘on’); 目的:分级处理;整体与结构 树结构;
<?php
ini_set('error_reporting', E_ALL);
ini_set('display_errors', 'on');
abstract class Company{
protected $name;
function __construct($name){
$this->name=$name;
}
abstract function Add(Company $company);
abstract function Remove(Company $company);
abstract function Display($depth);
}class SubCompany extends Company
{
private $sub_companys = array();
function __construct($name){
parent::__construct($name); }
public function Add(Company $company){
//echo 31;die;
$this->sub_companys[] = $company;
}
function Remove(Company $company) {
$key = array_search($company , $this->sub_companys);
if ( $key != false) {
unset($this->sub_companys[$key]);
} }
function Display($depth) { $pre = "";
for($i=0 ; $i<$depth; $i++){
$pre.="-";
}
$pre.=$this->name."<br/>";
echo $pre; foreach ($this->sub_companys as $v ) {
$v->Display($depth+2);
}
}
} class MoneyDept extends Company
{ function __construct($name){
parent::__construct($name);
} function Add(Company $company){
echo "叶子节点,不能再添加。。。<br/>" ;
}
function Remove(Company $company) {
echo "叶子节点,不能再删除。。。<br/>";
}
function Display($depth) {
$pre = "";
for($i=0 ; $i<$depth; $i++){
$pre.="-";
}
$pre.=$this->name."<br/>";
echo $pre;
}}class ItDept extends Company
{ function __construct($name){
parent::__construct($name);
} function Add(Company $company){
echo "叶子节点,不能再添加。。。<br/>";
}
function Remove(Company $company) {
echo "叶子节点,不能再删除。。。<br/>";
}
function Display($depth) {
$pre = "";
for($i=0 ; $i<$depth; $i++){
$pre.="-";
}
$pre.=$this->name."<br/>";
echo $pre;
}}$root = new SubCompany("北京总公司");
//$a = new MoneyDept("总公司财务部");
$root->Add(new MoneyDept("总公司财务部"));
$root->Add(new ItDept("总公司技术部门"));$sh = new SubCompany("上海分公司");
$sh->Add(new MoneyDept("上海分公司财务部"));
$sh->Add(new ItDept("上海分公司技术部门"));
$root->Add($sh);$root->Display(1);echo "<br>";
$root->Remove($sh);
$root->Display(3);