php教程

范例

Example #1 Yaml 范例

<?php
$addr 
= array(
    
"given" => "Chris",
    
"family"=> "Dumars",
    
"address"=> array(
        
"lines"=> "458 Walkman Dr.
        Suite #292"
,
        
"city"=> "Royal Oak",
        
"state"=> "MI",
        
"postal"=> 48046,
      ),
  );
$invoice = array (
    
"invoice"=> 34843,
    
"date"=> "2001-01-23",
    
"bill-to"=> $addr,
    
"ship-to"=> $addr,
    
"product"=> array(
        array(
            
"sku"=> "BL394D",
            
"quantity"=> 4,
            
"description"=> "Basketball",
            
"price"=> 450,
          ),
        array(
            
"sku"=> "BL4438H",
            
"quantity"=> 1,
            
"description"=> "Super Hoop",
            
"price"=> 2392,
          ),
      ),
    
"tax"=> 251.42,
    
"total"=> 4443.52,
    
"comments"=> "Late afternoon is best. Backup contact is Nancy Billsmer @ 338-4338.",
    );

// 把该 invoice 转换生成 YAML 的表示法
$yaml yaml_emit($invoice);
var_dump($yaml);

// 把 YAML 转换成 PHP 变量
$parsed yaml_parse($yaml);

// 来回转换,以检查两个结构是否相等效
var_dump($parsed == $invoice);
?>

以上例程的输出类似于:

string(631) "---
invoice: 34843
date: "2001-01-23"
bill-to:
  given: Chris
  family: Dumars
  address:
    lines: |-
      458 Walkman Dr.
              Suite #292
    city: Royal Oak
    state: MI
    postal: 48046
ship-to:
  given: Chris
  family: Dumars
  address:
    lines: |-
      458 Walkman Dr.
              Suite #292
    city: Royal Oak
    state: MI
    postal: 48046
product:
- sku: BL394D
  quantity: 4
  description: Basketball
  price: 450
- sku: BL4438H
  quantity: 1
  description: Super Hoop
  price: 2392
tax: 251.420000
total: 4443.520000
comments: Late afternoon is best. Backup contact is Nancy Billsmer @ 338-4338.
...
"
bool(true)

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