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yaml_emit

(PECL yaml >= 0.5.0)

yaml_emit — Returns the YAML representation of a value

说明

yaml_emit(
    mixed $data,
    int $encoding = YAML_ANY_ENCODING,
    int $linebreak = YAML_ANY_BREAK,
    array $callbacks = null
): string

Generate a YAML representation of the provided data.

参数

data

The data being encoded. Can be any type except a resource.

encoding

Output character encoding chosen from YAML_ANY_ENCODING, YAML_UTF8_ENCODING, YAML_UTF16LE_ENCODING, YAML_UTF16BE_ENCODING.

linebreak

Output linebreak style chosen from YAML_ANY_BREAK, YAML_CR_BREAK, YAML_LN_BREAK, YAML_CRLN_BREAK.

callbacks

Content handlers for emitting YAML nodes. Associative array of classname => callable mappings. See emit callbacks for more details.

返回值

Returns a YAML encoded string on success.

更新日志

版本 说明
PECL yaml 1.1.0 The callbacks parameter was added.

示例

示例 #1 yaml_emit() example

<?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"=> 980208000,
"bill-to"=> $addr,
"ship-to"=> $addr,
"product"=> array(
array(
"sku"=> "BL394D",
"quantity"=> 4,
"description"=> "Basketball",
"price"=> 450,
),
array(
"sku"=> "BL4438H",
"quantity"=> 1,
"description"=> "Super Hoop",
"price"=> 2392,
),
),
"tax"=> 251.42,
"total"=> 4443.52,
"comments"=> "Late afternoon is best. Backup contact is Nancy Billsmer @ 338-4338.",
);
var_dump(yaml_emit($invoice));
?>

以上示例的输出类似于：

string(628) "---
invoice: 34843
date: 980208000
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.
...
"

参见