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104 lines
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104 lines
7.2 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>Escape special characters in a string for use in an SQL statement</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.cubrid-real-escape-string" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">cubrid_real_escape_string</h1>
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<p class="verinfo">(PECL CUBRID >= 8.3.0)</p><p class="refpurpose"><span class="refname">cubrid_real_escape_string</span> — <span class="dc-title">Escape special characters in a string for use in an SQL statement</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.cubrid-real-escape-string-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>cubrid_real_escape_string</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$unescaped_string</code></span>
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[, <span class="methodparam"><span class="type">resource</span> <code class="parameter">$conn_identifier</code></span>
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] ) : <span class="type">string</span></div>
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<p class="para rdfs-comment">
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This function returns the escaped string version of the given string. It
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will escape the following characters: <strong><code>'</code></strong>.
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In general, single quotations are used to enclose character string. Double
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quotations may be used as well depending on the value of ansi_quotes,
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which is a parameter related to SQL statement. If the ansi_quotes value is
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set to no, character string enclosed by double quotations is handled as
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character string, not as an identifier. The default value is yes.
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If you want to include a single quote as part of a character string, enter
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two single quotes in a row.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.cubrid-real-escape-string-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">unescaped_string</code></dt>
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<dd>
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<p class="para">The string that is to be escaped.</p></dd>
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<dt>
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<code class="parameter">conn_identifier</code></dt>
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<dd>
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<p class="para">
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The CUBRID connection. If the connection identifier is not specified, the
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last connection opened by <span class="function"><a href="cubrid_connect.html" class="function">cubrid_connect()</a></span> is assumed.
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</p></dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.cubrid-real-escape-string-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Escaped string version of the given string, on success.
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</p>
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<p class="para">
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<strong><code>FALSE</code></strong> on failure.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.cubrid-real-escape-string-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-1177">
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<p><strong>Example #1 <span class="function"><strong>cubrid_real_escape_string()</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 />$conn </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #0000BB">33000</span><span style="color: #007700">, </span><span style="color: #DD0000">"demodb"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$unescaped_str </span><span style="color: #007700">= </span><span style="color: #DD0000">' !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$escaped_str </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_real_escape_string</span><span style="color: #007700">(</span><span style="color: #0000BB">$unescaped_str</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$len </span><span style="color: #007700">= </span><span style="color: #0000BB">strlen</span><span style="color: #007700">(</span><span style="color: #0000BB">$unescaped_str</span><span style="color: #007700">);<br /><br />@</span><span style="color: #0000BB">cubrid_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">"DROP TABLE cubrid_test"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">cubrid_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">"CREATE TABLE cubrid_test (t char(</span><span style="color: #0000BB">$len</span><span style="color: #DD0000">))"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">cubrid_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">"INSERT INTO cubrid_test (t) VALUES('</span><span style="color: #0000BB">$escaped_str</span><span style="color: #DD0000">')"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$req </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">"SELECT * FROM cubrid_test"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_fetch_assoc</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">cubrid_close_request</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">cubrid_disconnect</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">);<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>以上例程会输出：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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array(1) {
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["t"]=>
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string(95) " !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~"
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}
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</pre></div>
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</div>
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</div>
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</div>
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</div></div></div></body></html> |