<?php
/**
* Squiz_Sniffs_PHP_LowercasePHPFunctionsSniff.
*
* PHP version 5
*
* @category PHP
* @package PHP_CodeSniffer
* @author Greg Sherwood <gsherwood@squiz.net>
* @author Marc McIntyre <mmcintyre@squiz.net>
* @copyright 2006-2014 Squiz Pty Ltd (ABN 77 084 670 600)
* @license https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
* @link http://pear.php.net/package/PHP_CodeSniffer
*/
/**
* Squiz_Sniffs_PHP_LowercasePHPFunctionsSniff.
*
* Ensures all calls to inbuilt PHP functions are lowercase.
*
* @category PHP
* @package PHP_CodeSniffer
* @author Greg Sherwood <gsherwood@squiz.net>
* @author Marc McIntyre <mmcintyre@squiz.net>
* @copyright 2006-2014 Squiz Pty Ltd (ABN 77 084 670 600)
* @license https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
* @version Release: 1.5.5
* @link http://pear.php.net/package/PHP_CodeSniffer
*/
class Squiz_Sniffs_PHP_LowercasePHPFunctionsSniff implements PHP_CodeSniffer_Sniff
{
/**
* Returns an array of tokens this test wants to listen for.
*
* @return array
*/
public function register()
{
return array(T_STRING);
}//end register()
/**
* Processes this test, when one of its tokens is encountered.
*
* @param PHP_CodeSniffer_File $phpcsFile The file being scanned.
* @param int $stackPtr The position of the current token in
* the stack passed in $tokens.
*
* @return void
*/
public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr)
{
$tokens = $phpcsFile->getTokens();
// Make sure this is a function call.
$next = $phpcsFile->findNext(T_WHITESPACE, ($stackPtr + 1), null, true);
if ($next === false) {
// Not a function call.
return;
}
if ($tokens[$next]['code'] !== T_OPEN_PARENTHESIS) {
// Not a function call.
return;
}
$prev = $phpcsFile->findPrevious(array(T_WHITESPACE, T_BITWISE_AND), ($stackPtr - 1), null, true);
if ($tokens[$prev]['code'] === T_FUNCTION) {
// Function declaration, not a function call.
return;
}
if ($tokens[$prev]['code'] === T_NS_SEPARATOR) {
// Namespaced class/function, not an inbuilt function.
return;
}
if ($tokens[$prev]['code'] === T_NEW) {
// Object creation, not an inbuilt function.
return;
}
if ($tokens[$prev]['code'] === T_OBJECT_OPERATOR) {
// Not an inbuilt function.
return;
}
if ($tokens[$prev]['code'] === T_DOUBLE_COLON) {
// Not an inbuilt function.
return;
}
// Make sure it is an inbuilt PHP function.
// PHP_CodeSniffer doesn't include/require any files, so no
// user defined global functions can exist, except for
// PHP_CodeSniffer ones.
$content = $tokens[$stackPtr]['content'];
if (function_exists($content) === false) {
return;
}
if ($content !== strtolower($content)) {
$error = 'Calls to inbuilt PHP functions must be lowercase; expected "%s" but found "%s"';
$data = array(
strtolower($content),
$content,
);
$phpcsFile->addError($error, $stackPtr, 'CallUppercase', $data);
}
}//end process()
}//end class
?>