readme.md

1. Download WordPress.xml configuration file from this gist.

2. Place into .WebIdeXX/config/codestyles in your user profile directory, differs by operating system.

3. Select Settings > Project Settings > Code Style > Use global settings > Scheme name > "WordPress".

4. Format via Code > Reformat Code... in menu.

5. Please vote for ticket WI-12040 WordPress coding style support to show support for PhpStorm having WordPress coding style ruleset out of the box!

WordPress.xml

<?xml version="1.0" encoding="UTF-8"?>
<code_scheme name="WordPress">
  <option name="USE_SAME_INDENTS" value="true" />
  <option name="IGNORE_SAME_INDENTS_FOR_LANGUAGES" value="true" />
  <option name="OTHER_INDENT_OPTIONS">
    <value>
      <option name="INDENT_SIZE" value="2" />
      <option name="CONTINUATION_INDENT_SIZE" value="4" />
      <option name="TAB_SIZE" value="2" />
      <option name="USE_TAB_CHARACTER" value="true" />
      <option name="SMART_TABS" value="false" />
      <option name="LABEL_INDENT_SIZE" value="0" />
      <option name="LABEL_INDENT_ABSOLUTE" value="false" />
      <option name="USE_RELATIVE_INDENTS" value="false" />
    </value>
  </option>
  <option name="HTML_ATTRIBUTE_WRAP" value="0" />
  <option name="HTML_TEXT_WRAP" value="0" />
  <option name="HTML_SPACE_INSIDE_EMPTY_TAG" value="true" />
  <JSCodeStyleSettings>
    <option name="ALIGN_OBJECT_PROPERTIES" value="2" />
  </JSCodeStyleSettings>
  <PHPCodeStyleSettings>
    <option name="ALIGN_KEY_VALUE_PAIRS" value="true" />
    <option name="ALIGN_PHPDOC_PARAM_NAMES" value="true" />
    <option name="ALIGN_PHPDOC_COMMENTS" value="true" />
    <option name="ALIGN_ASSIGNMENTS" value="true" />
    <option name="PHPDOC_BLANK_LINES_AROUND_PARAMETERS" value="true" />
  </PHPCodeStyleSettings>
  <XML>
    <option name="XML_LEGACY_SETTINGS_IMPORTED" value="true" />
  </XML>
  <codeStyleSettings language="CSS">
    <indentOptions>
      <option name="INDENT_SIZE" value="2" />
      <option name="CONTINUATION_INDENT_SIZE" value="4" />
      <option name="TAB_SIZE" value="2" />
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
  <codeStyleSettings language="CoffeeScript">
    <indentOptions>
      <option name="CONTINUATION_INDENT_SIZE" value="4" />
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
  <codeStyleSettings language="Gherkin">
    <indentOptions>
      <option name="CONTINUATION_INDENT_SIZE" value="4" />
      <option name="TAB_SIZE" value="2" />
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
  <codeStyleSettings language="HTML">
    <indentOptions>
      <option name="INDENT_SIZE" value="2" />
      <option name="CONTINUATION_INDENT_SIZE" value="4" />
      <option name="TAB_SIZE" value="2" />
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
  <codeStyleSettings language="JavaScript">
    <indentOptions>
      <option name="INDENT_SIZE" value="2" />
      <option name="TAB_SIZE" value="2" />
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
  <codeStyleSettings language="LESS">
    <indentOptions>
      <option name="CONTINUATION_INDENT_SIZE" value="4" />
      <option name="TAB_SIZE" value="2" />
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
  <codeStyleSettings language="PHP">
    <option name="CLASS_BRACE_STYLE" value="1" />
    <option name="METHOD_BRACE_STYLE" value="1" />
    <option name="SPACE_AROUND_UNARY_OPERATOR" value="true" />
    <option name="SPACE_WITHIN_PARENTHESES" value="true" />
    <option name="SPACE_WITHIN_METHOD_CALL_PARENTHESES" value="true" />
    <option name="SPACE_WITHIN_METHOD_PARENTHESES" value="true" />
    <option name="SPACE_WITHIN_IF_PARENTHESES" value="true" />
    <option name="SPACE_WITHIN_WHILE_PARENTHESES" value="true" />
    <option name="SPACE_WITHIN_FOR_PARENTHESES" value="true" />
    <option name="SPACE_WITHIN_CATCH_PARENTHESES" value="true" />
    <option name="SPACE_WITHIN_SWITCH_PARENTHESES" value="true" />
    <option name="SPACE_WITHIN_ARRAY_INITIALIZER_BRACES" value="true" />
    <option name="SPACE_AFTER_TYPE_CAST" value="true" />
    <option name="DOWHILE_BRACE_FORCE" value="3" />
    <option name="WHILE_BRACE_FORCE" value="3" />
    <option name="FOR_BRACE_FORCE" value="3" />
    <indentOptions>
      <option name="INDENT_SIZE" value="2" />
      <option name="TAB_SIZE" value="2" />
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
  <codeStyleSettings language="SCSS">
    <indentOptions>
      <option name="CONTINUATION_INDENT_SIZE" value="4" />
      <option name="TAB_SIZE" value="2" />
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
  <codeStyleSettings language="SQL">
    <indentOptions>
      <option name="CONTINUATION_INDENT_SIZE" value="4" />
      <option name="TAB_SIZE" value="2" />
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
  <codeStyleSettings language="XML">
    <indentOptions>
      <option name="INDENT_SIZE" value="2" />
      <option name="CONTINUATION_INDENT_SIZE" value="4" />
      <option name="TAB_SIZE" value="2" />
      <option name="USE_TAB_CHARACTER" value="true" />
    </indentOptions>
  </codeStyleSettings>
</code_scheme>

New line between "}" and "else" has been removed (based on codex).