function.unicode-set-subst-char.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Set the substitution character for string conversion errors</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="ref.unicode.html">Unicode Functions</a></div> <div class="next" style="text-align: right; float: right;"><a href="refs.utilspec.image.html">Image Processing and Generation</a></div> <div class="up"><a href="ref.unicode.html">Unicode Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.unicode-set-subst-char" class="refentry"> <div class="refnamediv"> <h1 class="refname">unicode_set_subst_char</h1> <p class="verinfo">(No version information available, might be only in CVS)</p><p class="refpurpose"><span class="refname">unicode_set_subst_char</span> — <span class="dc-title">Set the substitution character for string conversion errors</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><b><b>unicode_set_subst_char</b></b></span> ( <span class="methodparam"><span class="type"><span class="type unicode">unicode</span></span> <tt class="parameter">$character</tt></span> )</div> <p class="para rdfs-comment"> When converting a string from or to unicode, an invalid or unconvertable character may be encountered. When the conversion error mode is set to <b><tt>U_CONV_ERROR_SUBST</tt></b>, the character that caused the error is substituted by a character set by this function. The default substitution character is <i>?</i>. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">character</tt></i></span> <dd> <p class="para"> The substitution character to use. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <b><tt>TRUE</tt></b> on success or <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 errors"> <h3 class="title">Errors/Exceptions</h3> <p class="para"> Emits a <b><tt>E_WARNING</tt></b> level error if <i><tt class="parameter">character</tt></i> is invalid. </p> </div> <div class="refsect1 notes"> <h3 class="title">Notes</h3> <div class="warning"><b class="warning">Warning</b><p class="simpara">This function is<em class="emphasis">EXPERIMENTAL</em>. The behaviour of this function, its name, andsurrounding documentation may change without notice in a future release of PHP.This function should be used at your own risk.</p></div> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.unicode-set-error-mode.html" class="function" rel="rdfs-seeAlso">unicode_set_error_mode()</a></li> <li class="member"><a href="function.unicode-get-error-mode.html" class="function" rel="rdfs-seeAlso">unicode_get_error_mode()</a></li> <li class="member"><a href="function.unicode-encode.html" class="function" rel="rdfs-seeAlso">unicode_encode()</a></li> <li class="member"><a href="function.unicode-decode.html" class="function" rel="rdfs-seeAlso">unicode_decode()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="ref.unicode.html">Unicode Functions</a></div> <div class="next" style="text-align: right; float: right;"><a href="refs.utilspec.image.html">Image Processing and Generation</a></div> <div class="up"><a href="ref.unicode.html">Unicode Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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