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yaml_parse

(PECL yaml >= 0.4.0)

yaml_parse — Parse a YAML stream

Description

代码语言:javascript
复制
mixed yaml_parse ( string $input [, int $pos = 0 [, int &$ndocs [, array $callbacks = null ]]] )

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

Parameters

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.

Return Values

Returns the value encoded in input in appropriate PHP type or FALSE on failure. If pos is -1 an array will be returned with one entry for each document found in the stream.

Examples

Example #1 yaml_parse() example

代码语言:javascript
复制
<?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);
?>

The above example will output something similar to:

代码语言:javascript
复制
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."
}

Notes

Warning

Processing untrusted user input with yaml_parse() is dangerous if the use of unserialize() is enabled for nodes using the !php/object tag. This behavior can be disabled by using the yaml.decode_php ini setting.

See Also

  • yaml_parse_file() - Parse a YAML stream from a file
  • yaml_parse_url() - Parse a Yaml stream from a URL
  • yaml_emit() - Returns the YAML representation of a value

← yaml_parse_url

代码语言:txt
复制
 ? 1997–2017 The PHP Documentation Group

Licensed under the Creative Commons Attribution License v3.0 or later.

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