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I have definitions as below:

\lstset{
    commentstyle = \color{gray},
    extendedchars = \true,
    inputencoding = utf8x,
    language = php,
    keepspaces = true,
    keywordstyle = \bfseries
}

And here's the code:

\begin{lstlisting}[language=PHP]
        function processRequest()
        {
            $req = $this->request;
            $view = $this->view;
            $view->addHeaderScript("scripts/jquery_addons.js");
            // doing smth...
            return $this->view;
        }

But only if, else and foreach keywords are highlighted. I want function and return keywords also to be highlighted.

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up vote 4 down vote accepted

function and return seem not to be in the PHP keyword default list (which can be found in the file lstdrvrs); you can add them using morekeywords:

\documentclass{article}
\usepackage{xcolor}
\usepackage{listings}

\lstset{language=PHP,
    commentstyle = \color{gray},
    extendedchars = \true,
    inputencoding = utf8x,
    keepspaces = true,
    keywordstyle = \bfseries,
    morekeywords={function,return}
}

\begin{document}

\begin{lstlisting}
        function processRequest()
        {
            $req = $this->request;
            $view = $this->view;
            $view->addHeaderScript("scripts/jquery_addons.js");
            // doing smth...
            return $this->view;
        }
\end{lstlisting}

\end{document}

enter image description here

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