How to use the sphinx.highlighting.lexers function in Sphinx

# Usually you set "language" from the command line for these cases.
language = None

# List of patterns, relative to source directory, that match files and
# directories to ignore when looking for source files.
# This pattern also affects html_static_path and html_extra_path .
exclude_patterns = ['env', u'_build', 'Thumbs.db', '.DS_Store']

# The name of the Pygments (syntax highlighting) style to use.
pygments_style = 'sphinx'

from sphinx.highlighting import lexers
from delphin.highlight import TDLLexer, SimpleMRSLexer

lexers['tdl'] = TDLLexer(startinline=True)
lexers['simplemrs'] = SimpleMRSLexer(startinline=True)

# Global definitions
rst_prolog = """
.. role:: python(code)
   :language: python

.. default-role:: python
"""

# -- Options for HTML output -------------------------------------------------

# The theme to use for HTML and HTML Help pages.  See the documentation for
# a list of builtin themes.
#
html_theme = 'sphinx_rtd_theme'
#html_theme = 'classic'

# output. They are ignored by default.
#show_authors = False

# The name of the Pygments (syntax highlighting) style to use.
pygments_style = 'sphinx'

# A list of ignored prefixes for module index sorting.
#modindex_common_prefix = []

# If true, keep warnings as "system message" paragraphs in the built documents.
#keep_warnings = False


# -- Options for code highlighting ----------------------------------------

lexers['php'] = PhpLexer(startinline=True)

# use PHP as the primary domain
primary_domain = 'php'

api_url = 'http://soon/%s'


# -- Options for HTML output ----------------------------------------------

# The theme to use for HTML and HTML Help pages.  See the documentation for
# a list of builtin themes.
html_theme = 'default'

# Theme options are theme-specific and customize the look and feel of a theme
# further.  For a list of options available for each theme, see the
# documentation.

# How to display URL addresses: 'footnote', 'no', or 'inline'.
#texinfo_show_urls = 'footnote'

# If true, do not generate a @detailmenu in the "Top" node's menu.
#texinfo_no_detailmenu = False

primary_domain = 'php'
api_url = 'https://area51.phpbb.com/docs/code/develop-ascraeus/%s'

# loading PhpLexer
from sphinx.highlighting import lexers
from pygments.lexers.web import PhpLexer

# enable highlighting for PHP code not between ```` by default
lexers['php'] = PhpLexer(startinline=True)
lexers['php-annotations'] = PhpLexer(startinline=True)

source_suffix = '.rst'
master_doc = 'index'
project = 'Monofony'
copyright = u'2017, Monofony'
version = ''
release = ''
exclude_patterns = ['_includes/*.rst']
html_theme = 'sylius_rtd_theme'
html_theme_path = ["_themes"]
htmlhelp_basename = 'Syliusdoc'
man_pages = [
    ('index', 'sylius', u'Sylius Documentation',
     [u'Monofony'], 1)
]
sys.path.append(os.path.abspath('_exts'))
lexers['php'] = PhpLexer(startinline=True)
lexers['php-annotations'] = PhpLexer(startinline=True)
rst_epilog = """
"""

'version': version,
    'version_selector': get_versions(conf),
    'active_branches': conf.version.active,
    'stable': conf.version.stable,
    'sitename': sconf.theme.sitename,
    'nav_excluded': sconf.theme.nav_excluded,
    'upcoming': conf.version.upcoming
}

html_sidebars = sconf.sidebars

# Set up PHP syntax highlights
from sphinx.highlighting import lexers
from pygments.lexers.web import PhpLexer
lexers["php"] = PhpLexer(startinline=True)
lexers["php-annotations"] = PhpLexer(startinline=True)

# -- Options for LaTeX output --------------------------------------------------

latex_documents = []
if 'pdfs' in conf.system.files.data:
    for pdf in conf.system.files.data.pdfs:
        latex_documents.append((pdf.source, pdf.output, pdf.title, pdf.author, pdf.doc_class))

latex_preamble_elements = [ r'\DeclareUnicodeCharacter{FF04}{\$}',
                            r'\DeclareUnicodeCharacter{FF0E}{.}',
                            r'\DeclareUnicodeCharacter{2713}{Y}',
                            r'\PassOptionsToPackage{hyphens}{url}',
                            r'\usepackage{upquote}',
                            r'\pagestyle{plain}',
                            r'\pagenumbering{arabic}' ]
latex_elements = {

#epub_post_files = []

# A list of files that should not be packed into the epub file.
#epub_exclude_files = []

# The depth of the table of contents in toc.ncx.
#epub_tocdepth = 3

# Allow duplicate toc entries.
#epub_tocdup = True

# Highlight PHP without starting 

# output. They are ignored by default.
#show_authors = False

# The name of the Pygments (syntax highlighting) style to use.
pygments_style = 'sphinx'

# This will be used when using the shorthand notation
highlight_language = 'php'

# A list of ignored prefixes for module index sorting.
#modindex_common_prefix = []

# -- Settings for symfony doc extension ---------------------------------------------------

# enable highlighting for PHP code not between ```` by default
lexers['php'] = PhpLexer(startinline=True)
lexers['php-annotations'] = PhpLexer(startinline=True)
lexers['php-standalone'] = PhpLexer(startinline=True)

# -- Options for HTML output ---------------------------------------------------
import sphinx_rtd_theme

# The theme to use for HTML and HTML Help pages.  See the documentation for
# a list of builtin themes.
html_theme = 'sphinx_rtd_theme'

# Theme options are theme-specific and customize the look and feel of a theme
# further.  For a list of options available for each theme, see the
# documentation.
#html_theme_options = {}

# Add any paths that contain custom themes here, relative to this directory.