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)