* * #{main} * * * Listing of main.tpl: * * #{table} * * * Listing of table.tpl * * #{col1} * #{col2} * * * Code: * $tpl = new Template('example.tpl'); * $tpl->assign('title', 'Using template engine - example'); * $tpl->assignFile('main', 'main.tpl'); * $subTable = array(0 => array('col1' => 'First col, first run', * 'col2' => 'Second col, first run'), * 1 => array('col1' => 'First col, second run', * 'Second col, second run') * ); * * $tpl->assignBlockFile('table', 'table.tpl', $subTable); * $tpl->execute(); * * Produces: * * * * * * * * * * * * *

First col, first run	Second col, first run
First col, second run	Second col, second run

* * * */ class Template { var $template = ""; var $subTable = array(); var $debug = true; var $regExp = "/#{([a-zA-Z0-9.-:]*)}/"; /* Constructor. Load file as template */ function Template($file) { $this->template = $this->getFile($file); } /* Set debug mode */ function setDebug($mode) { $this->debug = $mode; } /* Get debug mode */ function getDebug() { return empty($this->debug); } /* Assign a value to a symbol */ function assign() { if (func_num_args() == 1) { if (!is_array(func_get_arg(0))) return false; $args = func_get_arg(0); foreach ($args as $symbol => $value) { $this->subTable[$symbol]['type'] = 'sub'; $this->subTable[$symbol]['value'] = $value; } $this->subTable = array_merge($this->subTable, $arg); } else if (func_num_args() == 2) { $this->subTable[func_get_arg(0)]['type'] = 'sub'; $this->subTable[func_get_arg(0)]['value'] = func_get_arg(1); } else { return false; } } /* Assign a file to a symbol */ function assignFile($symbol, $filename) { $this->subTable[$symbol]['type'] = 'file'; $this->subTable[$symbol]['value'] = $filename; } /* Assign a block to a symbol */ function assignBlock($symbol, $content, $subs) { $this->subTable[$symbol]['type'] = 'block'; $this->subTable[$symbol]['content'] = $content; $this->subTable[$symbol]['value'] = $subs; } /* Assign a file including a block to a symbol */ function assignBlockFile($symbol, $filename, $subs) { $this->subTable[$symbol]['type'] = 'block'; $this->subTable[$symbol]['content'] = $this->getFile($filename); $this->subTable[$symbol]['value'] = $subs; } /* Read file */ function getFile($file) { $file = INCLUDE_PATH.'/'.TEMPLATE_PATH.'/'.$file; if (is_file($file)) { $fp = fopen($file, 'r'); $buf = fread($fp, filesize($file)); fclose($fp); return $buf; } else if (!$this->getDebug()) { return "File not found (".$file.")"; } else { return ""; } } /* Make all substitutions */ function execute() { return $this->replace($this->template); } /* Make substitutions for input */ function replace($input) { return preg_replace_callback($this->regExp, array($this, 'substitute'), $input); } /* Callback function for replace */ function substitute($match) { $symbol = $match[1]; if (is_array($this->subTable[$symbol])) { switch ($this->subTable[$symbol]['type']) { case 'file': return $this->replace($this->getFile($this->subTable[$symbol]['value'])); case 'sub': return $this->subTable[$symbol]['value']; case 'block': for ($i = 0; $i < sizeof($this->subTable[$symbol]['value']); $i++) { foreach($this->subTable[$symbol]['value'][$i] as $key => $value) { $acc .= str_replace("#\{$key}", $value, $this->subTable[$symbol]['content']); } } return $acc; } } else { if (!$this->getDebug()) return "Warning: No such symbol (".$symbol.")"; } } } ?>