<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Check for any printable character(s) except space</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.ctype-digit.html">ctype_digit</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.ctype-lower.html">ctype_lower</a></div> <div class="up"><a href="ref.ctype.html">Ctype Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="function.ctype-graph" class="refentry"> <div class="refnamediv"> <h1 class="refname">ctype_graph</h1> <p class="verinfo">(PHP 4 >= 4.0.4, PHP 5)</p><p class="refpurpose"><span class="refname">ctype_graph</span> — <span class="dc-title">Check for any printable character(s) except space</span></p> </div> <div class="refsect1 description" id="refsect1-function.ctype-graph-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><strong>ctype_graph</strong></span> ( <span class="methodparam"><span class="type">string</span> <code class="parameter">$text</code></span> )</div> <p class="para rdfs-comment"> Checks if all of the characters in the provided <span class="type"><a href="language.types.string.html" class="type string">string</a></span>, <em><code class="parameter">text</code></em>, creates visible output. </p> </div> <div class="refsect1 parameters" id="refsect1-function.ctype-graph-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter">text</code></em></span> <dd> <p class="para"> The tested string. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-function.ctype-graph-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <strong><code>TRUE</code></strong> if every character in <em><code class="parameter">text</code></em> is printable and actually creates visible output (no white space), <strong><code>FALSE</code></strong> otherwise. </p> </div> <div class="refsect1 examples" id="refsect1-function.ctype-graph-examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example" id="example-5076"> <p><strong>Example #1 A <span class="function"><strong>ctype_graph()</strong></span> example</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$strings </span><span style="color: #007700">= array(</span><span style="color: #DD0000">'string1' </span><span style="color: #007700">=> </span><span style="color: #DD0000">"asdf\n\r\t"</span><span style="color: #007700">, </span><span style="color: #DD0000">'string2' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'arf12'</span><span style="color: #007700">, </span><span style="color: #DD0000">'string3' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'LKA#@%.54'</span><span style="color: #007700">);<br />foreach (</span><span style="color: #0000BB">$strings </span><span style="color: #007700">as </span><span style="color: #0000BB">$name </span><span style="color: #007700">=> </span><span style="color: #0000BB">$testcase</span><span style="color: #007700">) {<br /> if (</span><span style="color: #0000BB">ctype_graph</span><span style="color: #007700">(</span><span style="color: #0000BB">$testcase</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #DD0000">"The string '</span><span style="color: #0000BB">$name</span><span style="color: #DD0000">' consists of all (visibly) printable characters.\n"</span><span style="color: #007700">;<br /> } else {<br /> echo </span><span style="color: #DD0000">"The string '</span><span style="color: #0000BB">$name</span><span style="color: #DD0000">' does not consist of all (visibly) printable characters.\n"</span><span style="color: #007700">;<br /> }<br />}<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> <div class="example-contents"><p>The above example will output:</p></div> <div class="example-contents screen"> <div class="cdata"><pre> The string 'string1' does not consist of all (visibly) printable characters. The string 'string2' consists of all (visibly) printable characters. The string 'string3' consists of all (visibly) printable characters. </pre></div> </div> </div> </p> </div> <div class="refsect1 notes" id="refsect1-function.ctype-graph-notes"> <h3 class="title">Notes</h3> <blockquote class="note"><p><strong class="note">Note</strong>: <p class="para"> If an <span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span> between -128 and 255 inclusive is provided, it is interpreted as the ASCII value of a single character (negative values have 256 added in order to allow characters in the Extended ASCII range). Any other integer is interpreted as a string containing the decimal digits of the integer.</p></p></blockquote> </div> <div class="refsect1 seealso" id="refsect1-function.ctype-graph-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"> <span class="function"><a href="function.ctype-alnum.html" class="function" rel="rdfs-seeAlso">ctype_alnum()</a> - Check for alphanumeric character(s)</span></li> <li class="member"> <span class="function"><a href="function.ctype-print.html" class="function" rel="rdfs-seeAlso">ctype_print()</a> - Check for printable character(s)</span></li> <li class="member"> <span class="function"><a href="function.ctype-punct.html" class="function" rel="rdfs-seeAlso">ctype_punct()</a> - Check for any printable character which is not whitespace or an alphanumeric character</span></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.ctype-digit.html">ctype_digit</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.ctype-lower.html">ctype_lower</a></div> <div class="up"><a href="ref.ctype.html">Ctype Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>