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116 lines
4.6 KiB
HTML
116 lines
4.6 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Creates a chdb file</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.chdb-create" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">chdb_create</h1>
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<p class="verinfo">(PECL chdb >= 0.1.0)</p><p class="refpurpose"><span class="refname">chdb_create</span> — <span class="dc-title">Creates a chdb file</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.chdb-create-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>chdb_create</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$pathname</code></span>
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, <span class="methodparam"><span class="type">array</span> <code class="parameter">$data</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>chdb_create()</strong></span> creates a chdb file containing the
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specified key-value pairs.
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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chdb files are not portable across little-endian and big-endian
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environments. Except for that, they are portable across different
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architectures. Also compatibility across different versions of chdb is not
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guaranteed.
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</p>
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</p></blockquote>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.chdb-create-parameters">
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<h3 class="title">参数</h3>
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<dl>
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<dt>
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<code class="parameter">pathname</code></dt>
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<dd>
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<p class="para">
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The name of the file to create.
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</p>
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<p class="para">
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If a file with the same name already exists, it is overwritten.
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</p>
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</dd>
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<dt>
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<code class="parameter">data</code></dt>
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<dd>
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<p class="para">
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An array containing the key-value pairs to store in the chdb file.
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</p>
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<p class="para">
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Keys and values are converted to strings before being written to the file,
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as chdb only support the string type. Note that binary strings are
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supported as well, both as keys and values.
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</p>
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</dd>
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</dl>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.chdb-create-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 errors" id="refsect1-function.chdb-create-errors">
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<h3 class="title">错误／异常</h3>
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<p class="para">
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Throws an exception in case the chdb file hasn't been successfully created.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.chdb-create-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-5233">
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<p><strong>Example #1 <span class="function"><strong>chdb_create()</strong></span> example</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br /><br />$data </span><span style="color: #007700">= array(<br /> </span><span style="color: #DD0000">'key1' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'value1'</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">'key2' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'value2'</span><span style="color: #007700">,<br /> </span><span style="color: #FF8000">// ...<br /></span><span style="color: #007700">);<br /></span><span style="color: #0000BB">chdb_create</span><span style="color: #007700">(</span><span style="color: #DD0000">'data.chdb'</span><span style="color: #007700">, </span><span style="color: #0000BB">$data</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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<div class="example-contents"><p>
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The above example will generate a chdb file named
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<em>data.chdb</em> and containing the key-value pairs defined in
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<var class="varname"><var class="varname">$data</var></var>.
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</p></div>
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</div>
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</div>
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</div></div></div></body></html> |