PHP Obfuscator / Compressor

phpLiteObfuscator.php

<?php

/**
 * Coded by PabloBandin ( p58l0.84nd1n@gmail.com )
 */

/**
 * @example
 * <pre>
        $file = file_get_contents("someFile.php");
        include "phpLiteObfuscator.php";


        $diccionary = array('foo'=>'______foo');
        $compressed = phpLiteObfuscator(    $file, 
                                            array( "query" ), 
                                            array( "fetchAssoc","fetchArray","fetchAll","fetchColumn","query"),
                                            array(),
                                            $diccionary );

        file_put_contents("someFile.compressed.php", $compressed);
 * </pre>
 * 
 *
 * @param string $SourceString -php file string to compress
 * @param array $_varsPrivate -Variables to ignore from compressing
 * @param array $_funcPrivate -Function names to ignore from compression
 * @param array $classPrivate -Class names to ignore from compression
 * @param array $dicc -Will be modified! Array of definitions to share, each key is a name and the value is the result of a compresion.
 * @return string
 */
function phpLiteObfuscator( $SourceString, 
                            $_varsPrivate=array(), 
                            $_funcPrivate=array(),
                            $classPrivate=array(),
                            &$dicc
                           )
{
    $varsPrivate = array_merge( $_varsPrivate, array( '_SESSION','_GET','_POST','this','_SERVER' ) );
    $funcPrivate = array_merge( $_funcPrivate, array( "__construct") );
    
    
    
    /* FUNCTIONS */
    $ref = phpLiteObfuscatorObscurer(   $SourceString, 
                                        $funcPrivate, 
                                        "/function\s+(\w+)\s*\(/m",
                                        "/(\W)VARNAME\s*(\()/",
                                        $dicc
                                        );
    
    /* VARIABLES */
    $ref = phpLiteObfuscatorObscurer(   $SourceString, 
                                        $varsPrivate, 
                                        "/\\$(\w{2,})\W/m",

                                        array(
                                            "|([>])\s*VARNAME(\W)|",
                                            "|(\\$)"."VARNAME(\W)|"
                                        ),
                                        $ref ); 
    
    
    /* CLASSNAMES */
    $ref = phpLiteObfuscatorObscurer(   $SourceString, 
                                        $classPrivate, 
                                        "/(?:class|interface) (\w+)[^\w]/m",
                                        "/(\W)VARNAME(\W)/",
                                        $ref );
    
    
    ##remove comments
    //
    
    $SourceString = preg_replace( "/(\s+)#(.*)\n/","$1\n",$SourceString );
    $SourceString = preg_replace( "/(\s+)\/\/(.*)\n/","$1\n",$SourceString );

    
    ##remove spaces
    $SourceString = preg_replace( "/ +/"," ",$SourceString );
    $SourceString = preg_replace( "/\n\s*\n/","\n",$SourceString );
    $SourceString = preg_replace( "/\t+/"," ",$SourceString );
    $SourceString = preg_replace( "/<\?php\s*/","<?php ",$SourceString );
    $SourceString = preg_replace( "/\n/","",$SourceString );
    
    
    $SourceString = preg_replace( "#/\*(?:(?!\*/).)*\*/#","",$SourceString );
    
    //$dicc = $ref;
    $dicc = $ref;
    
    return $SourceString;
}

/**@private*/
function phpLiteObfuscatorObscurer( &$Source, &$privateVars, $ColectorRegexp, $snifferRegexp, $refs = array() )
{
    $find       = array();
    $replace    = array();
    $varNum     = count($refs);
    $diccionary = &$refs;
    
    preg_match_all( $ColectorRegexp ,$Source, $matches );


    foreach( $matches[1] as $i=>$varName )
    {
        if( in_array( $varName, $privateVars ) || array_key_exists( $varName, $diccionary) ){
            continue;
        }

        $varNum++;
        
        if( array_key_exists( $varName, $diccionary) )
        {
            $vname = $diccionary[$varName];
        }
        else 
        {
            $diccionary[$varName] = $vname = "_" . dechex($varNum);
        }
        
        
        if( is_array( $snifferRegexp ) ){
            
            foreach( $snifferRegexp as $_snifRegexp ){
                
            $find[]                 = str_replace( "VARNAME",$varName, $_snifRegexp );
            $replace[]              = "$1". $vname . "$2";
                
            }
            
        }
        else {
            $find[]                 = str_replace("VARNAME",$varName, $snifferRegexp);
            $replace[]              = "$1". $vname . "$2";
        }
        
        
    }

    $Source = preg_replace( $find, $replace, $Source );
    
    return $diccionary;
}
?>