CodeIgniter使用phpcms模板引擎

CodeIgniter很适合小站点应用开发，但是它自带的view功能可能会给不懂PHP的前端人员带来麻烦。 相比之下phpcms的view模板解析就强大多了，所以这里就把PHPCMS的模板解析功能剥离出来，加到PHPCMS上。
首先在CodeIgniter libraries中 增加 template_cache.php

复制代码 代码如下:

<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
/**
 *  模板解析缓存
 */
final class template_cache {

    public $cache_path;
    public function __construct()
    {
        //$CI =& get_instance();
        $this->cache_path = APPPATH.'views';
    }

    /**
     * 编译模板
     *
     * @param $module    模块名称
     * @param $template    模板文件名
     * @param $istag    是否为标签模板
     * @return unknown
     */

    public function template_compile($module, $template, $style = 'default') {

        $tplfile= APPPATH.'views'.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.php';

        if (! file_exists ( $tplfile )) {
            show_error($tplfile ,  500 ,  'Template does not exist(1)');
        }

        $content = @file_get_contents ( $tplfile );

$filepath = $this->cache_path.DIRECTORY_SEPARATOR.'caches_template'.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR;

       
        if(!is_dir($filepath)) {
            mkdir($filepath, 0777, true);
        }
        $compiledtplfile = $filepath.$template.'.php';
        $content = $this->template_parse($content);
        $strlen = file_put_contents ( $compiledtplfile, $content );
        chmod ( $compiledtplfile, 0777 );
        return $strlen;
    }

    /**
     * 更新模板缓存
     *
     * @param $tplfile    模板原文件路径
     * @param $compiledtplfile    编译完成后，写入文件名
     * @return $strlen 长度
     */
    public function template_refresh($tplfile, $compiledtplfile) {
        $str = @file_get_contents ($tplfile);
        $str = $this->template_parse ($str);
        $strlen = file_put_contents ($compiledtplfile, $str );
        chmod ($compiledtplfile, 0777);
        return $strlen;
    }
   

/**
     * 解析模板
     *
     * @param $str    模板内容
     * @return ture
     */
    public function template_parse($str) {
        $str = preg_replace ( "/\{template\s+(.+)\}/", "<?php include template(\\1); ?>", $str );
        $str = preg_replace ( "/\{include\s+(.+)\}/", "<?php include \\1; ?>", $str );
        $str = preg_replace ( "/\{view\s+(.+)\}/", "<?php \$this->load->view(\\1); ?>", $str );
        $str = preg_replace ( "/\{php\s+(.+)\}/", "<?php \\1?>", $str );
        //alex fix
        $str = preg_replace ( "/\{{if\s+(.+?)\}}/", "``if \\1``", $str );
        $str = preg_replace ( "/\{{else\}}/", "``else``", $str );
        $str = preg_replace ( "/\{{\/if\}}/", "``/if``", $str );

        $str = preg_replace ( "/\{if\s+(.+?)\}/", "<?php if(\\1) { ?>", $str );
        $str = preg_replace ( "/\{else\}/", "<?php } else { ?>", $str );
        $str = preg_replace ( "/\{elseif\s+(.+?)\}/", "<?php } elseif (\\1) { ?>", $str );
        $str = preg_replace ( "/\{\/if\}/", "<?php } ?>", $str );

        //for 循环
        $str = preg_replace("/\{for\s+(.+?)\}/","<?php for(\\1) { ?>",$str);
        $str = preg_replace("/\{\/for\}/","<?php } ?>",$str);
        //++ --
        $str = preg_replace("/\{\+\+(.+?)\}/","<?php ++\\1; ?>",$str);
        $str = preg_replace("/\{\-\-(.+?)\}/","<?php ++\\1; ?>",$str);
        $str = preg_replace("/\{(.+?)\+\+\}/","<?php \\1++; ?>",$str);
        $str = preg_replace("/\{(.+?)\-\-\}/","<?php \\1--; ?>",$str);
        //alex fix
        $str = preg_replace ( "/\``if\s+(.+?)\``/", "{{if \\1}}", $str );
        $str = preg_replace ( "/\``else``/", "{{else}}", $str );
        $str = preg_replace ( "/\``\/if\``/", "{{/if}}", $str );

        $str = preg_replace ( "/\{loop\s+(\S+)\s+(\S+)\}/", "<?php \$n=1;if(is_array(\\1)) foreach(\\1 AS \\2) { ?>", $str );
        $str = preg_replace ( "/\{loop\s+(\S+)\s+(\S+)\s+(\S+)\}/", "<?php \$n=1; if(is_array(\\1)) foreach(\\1 AS \\2 => \\3) { ?>", $str );
        $str = preg_replace ( "/\{\/loop\}/", "<?php \$n++;}unset(\$n); ?>", $str );
        $str = preg_replace ( "/\{([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff:]*\(([^{}]*)\))\}/", "<?php echo \\1;?>", $str );
        $str = preg_replace ( "/\{\\$([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff:]*\(([^{}]*)\))\}/", "<?php echo \\1;?>", $str );
        $str = preg_replace ( "/\{(\\$[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)\}/", "<?php echo \\1;?>", $str );
        $str = preg_replace("/\{(\\$[a-zA-Z0-9_\[\]\'\"\$\x7f-\xff]+)\}/es", "\$this->addquote('<?php echo \\1;?>')",$str);
        $str = preg_replace ( "/\{([A-Z_\x7f-\xff][A-Z0-9_\x7f-\xff]*)\}/s", "<?php echo \\1;?>", $str );
        $str = preg_replace("/\{pc:(\w+)\s+([^}]+)\}/ie", "self::pc_tag('$1','$2', '$0')", $str);
        $str = preg_replace("/\{\/pc\}/ie", "self::end_pc_tag()", $str);
        $str = "<?php defined('BASEPATH') or exit('No direct script access allowed.'); ?>" . $str;
        return $str;
    }