PHP 5.4.33 Released

yaml_parse

(PECL yaml >= 0.4.0)

yaml_parseParse a YAML stream

Descrição

mixed yaml_parse ( string $input [, int $pos = 0 [, int &$ndocs [, array $callbacks ]]] )

Convert all or part of a YAML document stream to a PHP variable.

Parâmetros

input

The string to parse as a YAML document stream.

pos

Document to extract from stream (-1 for all documents, 0 for first document, ...).

ndocs

If ndocs is provided, then it is filled with the number of documents found in stream.

callbacks

Content handlers for YAML nodes. Associative array of YAML tag => callable mappings. See parse callbacks for more details.

Valor Retornado

Returns the value encoded in input in appropriate PHP type ou FALSE em caso de falha. If pos is -1 an array will be returned with one entry for each document found in the stream.

Exemplos

Exemplo #1 yaml_parse() example

<?php
$yaml 
= <<<EOD
---
invoice: 34843
date: "2001-01-23"
bill-to: &id001
  given: Chris
  family: Dumars
  address:
    lines: |-
      458 Walkman Dr.
              Suite #292
    city: Royal Oak
    state: MI
    postal: 48046
ship-to: *id001
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.
...
EOD;

$parsed yaml_parse($yaml);
var_dump($parsed);
?>

O exemplo acima irá imprimir algo similar à:

array(8) {
  ["invoice"]=>
  int(34843)
  ["date"]=>
  string(10) "2001-01-23"
  ["bill-to"]=>
  &array(3) {
    ["given"]=>
    string(5) "Chris"
    ["family"]=>
    string(6) "Dumars"
    ["address"]=>
    array(4) {
      ["lines"]=>
      string(34) "458 Walkman Dr.
        Suite #292"
      ["city"]=>
      string(9) "Royal Oak"
      ["state"]=>
      string(2) "MI"
      ["postal"]=>
      int(48046)
    }
  }
  ["ship-to"]=>
  &array(3) {
    ["given"]=>
    string(5) "Chris"
    ["family"]=>
    string(6) "Dumars"
    ["address"]=>
    array(4) {
      ["lines"]=>
      string(34) "458 Walkman Dr.
        Suite #292"
      ["city"]=>
      string(9) "Royal Oak"
      ["state"]=>
      string(2) "MI"
      ["postal"]=>
      int(48046)
    }
  }
  ["product"]=>
  array(2) {
    [0]=>
    array(4) {
      ["sku"]=>
      string(6) "BL394D"
      ["quantity"]=>
      int(4)
      ["description"]=>
      string(10) "Basketball"
      ["price"]=>
      int(450)
    }
    [1]=>
    array(4) {
      ["sku"]=>
      string(7) "BL4438H"
      ["quantity"]=>
      int(1)
      ["description"]=>
      string(10) "Super Hoop"
      ["price"]=>
      int(2392)
    }
  }
  ["tax"]=>
  float(251.42)
  ["total"]=>
  float(4443.52)
  ["comments"]=>
  string(68) "Late afternoon is best. Backup contact is Nancy Billsmer @ 338-4338."
}

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User Contributed Notes 1 note

up
1
alpacagm at gmail dot com
2 years ago
Simple usage example of interpreting custom tags:
<?php
$data
=
"#yaml
---
data: !mytag bar test
...
"
;

function
callback($value){
  return
str_replace('bar','baz',$value);
}
$cnt;
$array=yaml_parse($data,0,$cnt,array('!mytag'=>'callback'));

print_r($array['data']);
?>
output:
Array
(
   [data] => baz test
)
note, there is a related bug in version 1.0.1 (see tracker)
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