scanner/modules/scanner_lint.php

<?php
class LintModule extends ScannerModule {
	function LintModule() {
		$this->ScannerModule();
	}
	function preScan( $file ) {
		parent::preScan( $file );
		$output = array();
		if( $file['revision'] > 0 ) {
			global $svn_root, $svn_base;
			exec( "svn cat -r {$file['revision']} {$svn_root}{$svn_base}/{$file['filename']} 2>/dev/null | php -l 2>/dev/null", $output, $result );
			$file_contents = isset( $file['contents'] ) ? $file['contents'] : shell_exec( "svn cat -r {$file['revision']} {$svn_root}{$svn_base}/{$file['filename']} 2>/dev/null" );
		} else {
			exec( "php -l '{$file['filename']}' 2>/dev/null", $output, $result );
			$file_contents = file( $file['filename'] );
		}
		if( $result != 0 ) {
			foreach( $output as $linterror ) {
				$matches = array();
				if( preg_match( '/error:.*?on line (\d+)$/i', $linterror, $matches ) == 0 ) { continue; }
				$this->fault(
					array(
						'file' => $file['filename'],
						'line' => $matches[1],
						'context' => $file_contents[$matches[1] - 1]
					),
					FAULT_MAJOR,
					$linterror
				);
			}
		}
	}
}

addModule( new LintModule() );
?>