yaml_emit
(PECL yaml >= 0.5.0)
yaml_emit — Returns the YAML representation of a value
说明
$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 |
---|---|
1.1.0 |
The callbacks parameter was added.
|
范例
Example #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));
?>
以上例程的输出类似于:
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
- yaml_emit_file() - Send the YAML representation of a value to a file
- yaml_parse() - Parse a YAML stream