uTools-Manuals/docs/php/yaml_parse_url.html
2019-04-08 23:22:26 +08:00

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<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Parse a Yaml stream from a URL</title>
</head>
<body class="docs"><div id="layout">
<div id="layout-content"><div id="function.yaml-parse-url" class="refentry">
<div class="refnamediv">
<h1 class="refname">yaml_parse_url</h1>
<p class="verinfo">(PECL yaml &gt;= 0.4.0)</p><p class="refpurpose"><span class="refname">yaml_parse_url</span> &mdash; <span class="dc-title">Parse a Yaml stream from a URL</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.yaml-parse-url-description">
<h3 class="title">说明</h3>
<div class="methodsynopsis dc-description">
<span class="methodname"><strong>yaml_parse_url</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$url</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$pos</code><span class="initializer"> = 0</span></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter reference">&$ndocs</code></span>
[, <span class="methodparam"><span class="type">array</span> <code class="parameter">$callbacks</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
]]] ) : <span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span></div>
<p class="para rdfs-comment">
Convert all or part of a YAML document stream read from a URL to a PHP variable.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.yaml-parse-url-parameters">
<h3 class="title">参数</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">url</code></dt>
<dd>
<p class="para">
<code class="parameter">url</code> should be of the form &quot;scheme://...&quot;. PHP
will search for a protocol handler (also known as a wrapper) for that
scheme. If no wrappers for that protocol are registered, PHP will emit
a notice to help you track potential problems in your script and then
continue as though filename specifies a regular file.
</p>
</dd>
<dt>
<code class="parameter">pos</code></dt>
<dd>
<p class="para">
Document to extract from stream (<em>-1</em> for all
documents, <em>0</em> for first document, ...).
</p>
</dd>
<dt>
<code class="parameter">ndocs</code></dt>
<dd>
<p class="para">
If <code class="parameter">ndocs</code> is provided, then it is filled with the
number of documents found in stream.
</p>
</dd>
<dt>
<code class="parameter">callbacks</code></dt>
<dd>
<p class="para">
Content handlers for YAML nodes. Associative <span class="type"><a href="language.types.array.html" class="type array">array</a></span> of YAML
tag =&gt; <span class="type"><a href="language.types.callable.html" class="type callable">callable</a></span> mappings. See
<a href="yaml.callbacks.parse.html" class="link">parse callbacks</a> for more
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.yaml-parse-url-returnvalues">
<h3 class="title">返回值</h3>
<p class="para">
Returns the value encoded in <code class="parameter">input</code> in appropriate
PHP type 或者在失败时返回 <strong><code>FALSE</code></strong>. If <code class="parameter">pos</code> is
<em>-1</em> an <span class="type"><a href="language.types.array.html" class="type array">array</a></span> will be returned with one entry
for each document found in the stream.
</p>
</div>
<div class="refsect1 notes" id="refsect1-function.yaml-parse-url-notes">
<h3 class="title">注释</h3>
<div class="warning"><strong class="warning">Warning</strong>
<p class="para">
Processing untrusted user input with <span class="function"><strong>yaml_parse_url()</strong></span>
is dangerous if the use of <span class="function"><a href="unserialize.html" class="function">unserialize()</a></span> is enabled for
nodes using the <em>!php/object</em> tag. This behavior can be
disabled by using the <em>yaml.decode_php</em> ini setting.
</p>
</div>
</div>
<div class="refsect1 seealso" id="refsect1-function.yaml-parse-url-seealso">
<h3 class="title">参见</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><span class="function"><a href="yaml_parse.html" class="function" rel="rdfs-seeAlso">yaml_parse()</a> - Parse a YAML stream</span></li>
<li class="member"><span class="function"><a href="yaml_parse_file.html" class="function" rel="rdfs-seeAlso">yaml_parse_file()</a> - Parse a YAML stream from a file</span></li>
<li class="member"><span class="function"><a href="yaml_emit.html" class="function" rel="rdfs-seeAlso">yaml_emit()</a> - Returns the YAML representation of a value</span></li>
</ul>
</p>
</div>
</div></div></div></body></html>