Question 1) Why is the Variable/variable $this->$template not visible to parse_and_return(), lines 42-50, but visible to $this->fetch, lines 456-472. I thought parse_and_return and $this->fetch belong to the same object, therefore $this->$template should be visible to both functions.
Question 2) Where is $this->$template initialized?
bar.tpl & foo.tpl are separate files
<!-- bar.tpl -->
<HTML>
<HEAD><TITLE>Feature world - {PAGETITLE}</TITLE></HEAD>
<BODY BGCOLOR=BLACK TEXT=WHITE>
<H1>{PAGETITLE}</H1>
{PAGECONTENT}
</BODY>
</HTML>
-->
<!--
foo.tpl
This does not do anything obvious. Please look at {NAME}.
demo.php3
-->
index.php file
<?php
include "FastTemplate.php";
$tpl = new FastTemplate(".");
$tpl->define(array(foo => "foo.tpl", bar => "bar.tpl"));
$tpl->assign(NAME, "me");
$tpl->assign(PAGETITLE, "Welcome!");
$tpl->parse(PAGECONTENT, "foo");
echo $tpl->parse_and_return("bar");
?>
The FastTemplate Class / FastTemplate.php file
<?php
class FastTemplate {
var $start;
var $ERROR = "";
var $LAST = "";
var $ROOT = "";
var $FILELIST = array ( );
var $PARSEVARS = array ( );
var $LOADED = array ( );
var $HANDLE = array ( );
var $UPDT_TIME = '60';
var $COMMENTS_START = "{*";
var $COMMENTS_END = "*}";
var $PATTERN_VARS_VARIABLE = array ( );
var $PATTERN_VARS_DEFINE = array ( );
FUNCTION FastTemplate($pathToTemplates = "") {
if (! empty ( $pathToTemplates )) {
$this->set_root ( $pathToTemplates );
}
$this->start = $this->utime ();
}
FUNCTION parse_and_return($tpl_name) {
$HREF = 'TPL';
$this->parse ( $HREF, $tpl_name );
$result = trim ( $this->fetch ( $HREF ) );
$this->clear_href ( $HREF );
RETURN $result;
}
FUNCTION set_root($root) {
$trailer = substr ( $root, - 1 );
if ((ord ( $trailer )) != 47) {
$root = "$root" . chr ( 47 );
}
if (is_dir ( $root )) {
$this->ROOT = $root;
} else {
$this->ROOT = "";
$this->error ( "dir [$root] is not a directory" );
}
}
FUNCTION get_root() {
RETURN $this->ROOT;
}
FUNCTION utime() {
$time = explode ( " ", microtime () );
$usec = ( double ) $time [0];
$sec = ( double ) $time [1];
RETURN $sec + $usec;
}
FUNCTION get_template($template) {
if (empty ( $this->ROOT )) {
$this->error ( "Root not valid.", 1 );
RETURN FALSE;
}
if (empty ( $template )) {
$this->error ( "Template name is empty.", 1 );
RETURN FALSE;
};
$filename = "$this->ROOT" . "$template";
$contents = ((function_exists ( 'file_get_contents' ))) ? file_get_contents ( $filename ) : implode ( "\n", file ( $filename ) );
RETURN trim ( $contents );
}
FUNCTION parseParamString($string) {
$matches=array();
if (preg_match_all ( '/\{([a-z0-9_]+)\}/i', $string, $matches )) {
FOR($i = 0; $i < count ( $matches [0] ); $i ++) {
$string = str_replace ( $matches [0] [$i], $this->PARSEVARS [$matches [1] [$i]], $string );
}
}
RETURN $string;
}
FUNCTION value_defined($value, $field = '', $params = '') {
$var = $this->PARSEVARS [$value];
if ($field {0} == '.') {
$field = substr ( $field, 1 );
}
# echo "$value, $field, $params <BR>";
if (is_object ( $var )) {
if (method_exists ( $var, $field )) {
eval ( '$return = $var->' . $field . '(' . $this->parseParamString ( $params ) . ');' );
RETURN ((! empty ( $return )) || ($return === TRUE));
} ELSEif ((strcasecmp ( $field, 'id' ) != 0) && method_exists ( $var, 'get' )) {
$result = $var->get ( $field );
RETURN (! empty ( $result ) || $result === TRUE);
} ELSEif ((strcasecmp ( $field, 'id' ) == 0) && method_exists ( $var, 'getId' )) {
$result = $var->getId ();
RETURN (! empty ( $result ) || $result === TRUE);
}
} else {
RETURN (! empty ( $var ) || $var === TRUE);
}
}
FUNCTION parse_defined($template) {
$lines = split ( "\n", $template );
$newTemplate = "";
$ifdefs = FALSE;
$depth = 0;
$needparsedef [$depth] ["defs"] = FALSE;
$needparsedef [$depth] ["parse"] = TRUE;
WHILE ( list ( $num, $line ) = each ( $lines ) ) {
if (((! $needparsedef [$depth] ["defs"]) || ($needparsedef [$depth] ["parse"])) && (strpos ( $line, "IFDEF:" ) === FALSE) && (strpos ( $line, "IFNDEF:" ) === FALSE) && (strpos ( $line, "ELSE" ) === FALSE) && (strpos ( $line, "ENDIF" ) === FALSE)) {
$newTemplate .= trim ( $line ) . "\n";
}
if (preg_match ( "/<!--\s*IFDEF:\s*([a-zA-Z_][a-zA-Z0-9_]+)(\.|\-\>)?([a-zA-Z_][a-zA-Z0-9_]+)?\(?(\s*\,?\".*\"\s*\,?|\s*\,?[a-z0-9\_]*\s*\,?)\)?\s*-->/i", $line, $regs )) {
$depth ++;
$needparsedef [$depth] ["defs"] = TRUE;
if ($this->value_defined ( $regs [1], $regs [3], $regs [4] )){
$needparsedef [$depth] ["parse"] = $needparsedef [$depth - 1] ["parse"];
}else{
$needparsedef [$depth] ["parse"] = FALSE;
}
}
if (preg_match ( "/<!--\s*IFNDEF:\s*([a-zA-Z_][a-zA-Z0-9_]+)(\.|\-\>)?([a-zA-Z_][a-zA-Z0-9_]+)?\(?(\s*\,?\".*\"\s*\,?|\s*\,?[a-z0-9\_]*\s*\,?)\)?\s*-->/i", $line, $regs )) {
$depth ++;
$needparsedef [$depth] ["defs"] = TRUE;
}
if (! $this->value_defined ( $regs [1], $regs [3], $regs [4] )){
$needparsedef [$depth] ["parse"] = $needparsedef [$depth - 1] ["parse"];
}else{
$needparsedef [$depth] ["parse"] = FALSE;}
}
// ELSE block
if (preg_match ( "/<!--\s*ELSE\s*-->/i", $line )) {
if ($needparsedef [$depth] ["defs"]){
$needparsedef [$depth] ["parse"] = (! ($needparsedef [$depth] ["parse"]) & $needparsedef [$depth - 1] ["parse"]);
}
if (preg_match ( "/<!--\s*ENDIF\s*-->/i", $line )) {
$needparsedef [$depth] ["defs"] = FALSE;
$depth --;
}
}
if ($depth){
$this->error ( 'Some nonclosed IDEFS blocks', 0 );
}
RETURN $newTemplate;
}
FUNCTION parse_template($template, $ft_array) {
$matches=array();
if (preg_match_all ( '/\{([a-zA-Z_][a-zA-Z0-9_]+)(\.|\-\>)([a-zA-Z_][a-zA-Z0-9_]+)\(?(\s*\,?\".*?\"\s*\,?|\s*\,?[a-z0-9\_]*\s*\,?)\)?\}/i', $template, $matches )) {
FOR($i = 0; $i < count ( $matches [0] ); ++ $i) {
$obj = $ft_array [$matches [1] [$i]];
if ((is_object ( $obj ) && method_exists ( $obj, $matches [3] [$i] ))) {
eval ( '$return = $obj->' . $matches [3] [$i] . '(' . $this->parseParamString ( $matches [4] [$i] ) . ');' );
$template = str_replace ( $matches [0] [$i], $return, $template );
} else if (is_object ( $obj ) && ($matches [3] [$i] == 'id') && method_exists ( $obj, 'getId' )){
$template = str_replace ( $matches [0] [$i], $obj->getId (), $template );
}else if (is_object ( $obj ) && method_exists ( $obj, 'get' )){
$template = str_replace ( $matches [0] [$i], $obj->get ( $matches [3] [$i] ), $template ); }else if (! is_object ( $obj )){
$template = str_replace ( $matches [0] [$i], '', $template );
}
} //end for loop
} //end if
if (preg_match_all ( '/<\!\-\-\s*#include\s+file="([\{\}a-zA-Z0-9_\.\-\/]+)"\s*\\-\->/i', $template, $matches )) {
FOR($i = 0; $i < count ( $matches [0] ); $i ++) {
$file_path = $matches [1] [$i];
FOREACH ( $ft_array as $key => $value ) {
if (! empty ( $key )) {
$key = '{' . "$key" . '}';
$file_path = str_replace ( "$key", "$value", "$file_path" );
}
} //foreach
$content = '';
if (! isset ( $ft_array [$file_path] )) {
if (! file_exists ( $file_path )){
$file_path = $this->ROOT . $file_path;
}
if (! file_exists ( $file_path )){
$file_path = $this->ROOT . basename ( $file_path );
}
if (file_exists ( $file_path )) {
$content = ((function_exists ( 'file_get_contents' ))) ? file_get_contents ( $file_path ) : implode ( "\n", file ( $file_path ) );
} else {
$content = '';
}
} else {
$content = $ft_array [$file_path];
$template = str_replace ( $matches [0] [$i], $content, $template );
}
} //for
} //end preg_match_all
reset ( $ft_array );
WHILE ( list ( $key, $val ) = each ( $ft_array ) ) {
if (! (empty ( $key ))) {
if (gettype ( $val ) != "string") {
settype ( $val, "string" );
}
$key = '{' . "$key" . '}';
$template = str_replace ( "$key", "$val", "$template" );
}
}
$template = ereg_replace ( "{([A-Za-z0-9_\.]+)}", "", $template );
$template = preg_replace ( "/(<!--\s*IFDEF:\s*([a-zA-Z_][a-zA-Z0-9_]+)(\.|\-\>)?([a-zA-Z_][a-zA-Z0-9_]+)?\(?(\s*\,?\".*?\"\s*\,?|\s*\,?[a-z0-9\_]*\s*\,?)\)?\s*-->)/i", "\n$0\n", $template );
$template = preg_replace ( "/(<!--\s*IFNDEF:\s*([a-zA-Z_][a-zA-Z0-9_]+)(\.|\-\>)?([a-zA-Z_][a-zA-Z0-9_]+)?\(?(\s*\,?\".*?\"\s*\,?|\s*\,?[a-z0-9\_]*\s*\,?)\)?\s*-->)/i", "\n$0\n", $template );
$template = preg_replace ( "/(<!--\s*ELSE\s*-->)/i", "\n\\0\n", $template );
$template = preg_replace ( "/(<!--\s*ENDIF\s*-->)/i", "\n\\0\n", $template );
WHILE ( list ( $num, $line ) = each ( $lines ) ) {
if (! $inside_block) {
$template .= "$line\n";
}
}
$template = $this->parse_defined ( $template );
RETURN $template;
}
FUNCTION parse($ReturnVar, $FileTags) {
FOREACH ( $this->PATTERN_VARS_DEFINE as $value ){
$this->multiple_assign_define ( "$value" );
}
FOREACH ( $this->PATTERN_VARS_VARIABLE as $value ){
$this->multiple_assign ( "$value" );
}
$append = FALSE;
$this->LAST = $ReturnVar;
$this->HANDLE [$ReturnVar] = 1;
if (gettype ( $FileTags ) == "array") {
unset ( $this->$ReturnVar );
WHILE ( list ( $key, $val ) = each ( $FileTags ) ) {
if ((! isset ( $this->$val )) || (empty ( $this->$val ))) {
$this->LOADED ["$val"] = 1;
$fileName = $this->FILELIST ["$val"];
$this->$val = $this->get_template ( $fileName );
}
$this->$ReturnVar = $this->parse_template ( $this->$val, $this->PARSEVARS );
// For recursive calls.
$this->assign ( array ($ReturnVar => $this->$ReturnVar ) );
}
} else {
$val = $FileTags;
if ((substr ( $val, 0, 1 )) == '.') {
$append = TRUE;
$val = substr ( $val, 1 );
}
if ((! isset ( $this->$val )) || (empty ( $this->$val ))) {
$this->LOADED ["$val"] = 1;
$fileName = $this->FILELIST ["$val"];
$this->$val = $this->get_template ( $fileName );
}
if ($append) {
if (isset ( $this->$ReturnVar )) {
$this->$ReturnVar .= $this->parse_template ( $this->$val, $this->PARSEVARS );
} else {
$this->$ReturnVar = $this->parse_template ( $this->$val, $this->PARSEVARS );
}
} else {
$this->$ReturnVar = $this->parse_template ( $this->$val, $this->PARSEVARS );
}
$this->assign ( array ($ReturnVar => $this->$ReturnVar ) );
}
RETURN;
}
FUNCTION getfast($template = "") {
if (empty ( $template )) {
$template = $this->LAST;
}
// "$this->$template" not initialize here!
if ((! (isset ( $this->$template ))) || (empty ( $this->$template ))) {
$this->error ( "Nothing parsed, nothing printed", 0 );
RETURN;
} else {
if (! get_magic_quotes_gpc ()){
$this->$template = stripslashes ( $this->$template );
}
RETURN $this->$template;
}
}
FUNCTION fetch($template = "") {
if (empty ( $template )) {
$template = $this->LAST;
}
if ((! (isset ( $this->$template ))) || (empty ( $this->$template ))) {
$this->error ( "Nothing parsed, nothing printed", 0 );
RETURN "";
}
RETURN ($this->$template);
}
FUNCTION define($fileList, $value = null) {
if ((gettype ( $fileList ) != "array") && ! is_null ( $value )){
$fileList = array ($fileList => $value );
}
WHILE ( list ( $FileTag, $FileName ) = each ( $fileList ) ) {
$this->FILELIST ["$FileTag"] = $FileName;
}
RETURN TRUE;
}
FUNCTION clear_href($href) {
if (! empty ( $href )) {
if ((gettype ( $href )) != "array") {
unset ( $this->PARSEVARS [$href] );
RETURN;
} else {
FOREACH ( $href as $value ){
unset ( $this->PARSEVARS [$value] );
RETURN;
}
}
} else {
// Empty - clear them all
$this->clear_assign ();
}
RETURN;
}
FUNCTION clear_assign() {
if (! (empty ( $this->PARSEVARS ))) {
WHILE ( list ( $Ref, $Val ) = each ( $this->PARSEVARS ) ) {
unset ( $this->PARSEVARS ["$Ref"] );
}
}
}
FUNCTION assign_from_array($Arr, $Keys) {
if (gettype ( $Arr ) == "array") {
foreach ( $Keys as $k ){
if (! empty ( $k )){
$this->PARSEVARS [strtoupper ( $k )] = str_replace ( '&#', '&#', $Arr [$k] );
}
}
}
}
FUNCTION assign($ft_array, $trailer = "") {
if (gettype ( $ft_array ) == "array") {
WHILE ( list ( $key, $val ) = each ( $ft_array ) ) {
if (! (empty ( $key ))) {
if (! is_object ( $val )){
$this->PARSEVARS ["$key"] = str_replace ( '&#', '&#', $val );
} else{
$this->PARSEVARS ["$key"] = $val;
}
}
}
} else {
if (! empty ( $ft_array )) {
if (! is_object ( $trailer )){
$this->PARSEVARS ["$ft_array"] = str_replace ( '&#', '&#', $trailer );
}else{
$this->PARSEVARS ["$ft_array"] = $trailer;
}
}
}
}
FUNCTION get_assigned($ft_name = "") {
if (empty ( $ft_name )) {
RETURN FALSE;
}
if (isset ( $this->PARSEVARS ["$ft_name"] )) {
RETURN ($this->PARSEVARS ["$ft_name"]);
} else {
RETURN FALSE;
}
}
FUNCTION error($errorMsg, $die = 0) {
$this->ERROR = $errorMsg;
echo "ERROR: $this->ERROR <BR> \n";
if ($die == 1) {
exit ();
}
RETURN;
}
FUNCTION multiple_assign($pattern) {
WHILE ( list ( $key, $value ) = each ( $GLOBALS ) ) {
if (substr ( $key, 0, strlen ( $pattern ) ) == $pattern) {
$this->assign ( strtoupper ( $key ), $value );
}
}
reset ( $GLOBALS );
}
FUNCTION multiple_assign_define($pattern) {
$ar = get_defined_constants ();
FOREACH ( $ar as $key => $def ){
if (substr ( $key, 0, strlen ( $pattern ) ) == $pattern){
$this->assign ( strtoupper ( $key ), $def );
}
}
}
} // End Class
?>
