php-doc-en/reference/filesystem/functions/is-executable.xml

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  <refentry id="function.is-executable">
   <refnamediv>
    <refname>is_executable</refname>
    <refpurpose>Tells whether the filename is executable</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>bool</type><methodname>is_executable</methodname>
      <methodparam><type>string</type><parameter>filename</parameter></methodparam>
     </methodsynopsis>
    <para>
     Returns &true; if the filename exists and is executable.
    </para>

    &note.clearstatcache;

    &note.no-remote;

    <note>
     <simpara>
      This function is <emphasis role="strong">not</emphasis> available on
      Win32.
     </simpara>
    </note>
    <para>
     See also <function>is_file</function> and
     <function>is_link</function>.
    </para>
   </refsect1>
  </refentry>

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