PHP Implementation of CSS Update class instance _php skills

This article illustrates the CSS update class and its usage in PHP, which is very practical. Share to everyone for your reference. Specifically as follows:

The CSSUpdate.class.php class files are as follows:

<?php/** CSS Update class, update the version of the picture in the CSS file * date:2013-02-05 * author:fdipzone * ver:1.1 * Func: * update (); 
  * * ver:1.1 Add search_child parameters, can traverse subfolder/class cssupdate{private $csstmpl _path = null; 
  Private $CSS _path = null; 
  Private $replacetags = Array (); 
  Private $search _child = false; 
  Private $convert _num = 0; 
 
  Private $is _ready = 0; /** initialization * @param string $csstmpl _path css Template path * @param String $css _path CSS Target path * @param Array $replacetags Required Replaced picture type * @param boolean $search _child whether to traverse subfolders, default false/Public function __construct ($csstmpl _path, $css _path, 
      $replacetags =array (), $search _child=false) {if (!is_dir ($csstmpl _path) | |!is_dir ($css _path) | |! $replacetags) { 
    $this->is_ready = 0; 
      }else{$this->csstmpl_path = $csstmpl _path; 
      $this->css_path = $css _path; 
      $this->replacetags = $replacetags; 
      $this->search_child = $search _child; 
    $this->is_ready = 1; 
}  /** Update CSS File */Public Function update () {if ($this->is_ready==0) {$this->response (' Csstmpl or 
      Csspath or replacetags error '); 
    Return "; 
    $this->traversing ($this->csstmpl_path); 
  $this->response (' Covert num: '. $this->convert_num);  
    /** Traverse Folder * @param String $path File path * * Private function traversing ($path) {$handle = Opendir ($path); while (($file =readdir ($handle))!==false) {if ($file!= ' ... ' && $file!= '. ') {$curfile = $path. ' 
         
        /'. $file; if (Is_dir ($curfile)) {//folder if ($this->search_child) {//need to traverse subfolders $this->traversing ($CU 
          Rfile); }}elseif ($this->checkext ($curfile)) {//css file $dfile = str_replace ($this->csstmpl_path, $thi 
          S->css_path, $curfile); 
          $this->create ($curfile, $dfile); 
          $this->response ($curfile. ' Convert to '. $dfile. ' Success '); $this->cOnvert_num + +; 
  }} closedir ($handle); 
    /** Check file suffix * * Private function Checkext ($file) {$name = basename ($file); 
    $namefrag = Explode ('. ', $name); 
      if (count ($namefrag) >=2) {if (Strtolower ($namefrag [Count ($namefrag)-1]) = = ' css ') {//CSS file return true; 
  return false; /** Replace template content, write Csspath * @param string $tmplfile template file * @param string $dfile target file */Private function CR 
    Eate ($tmplfile, $dfile) {$css _content = file_get_contents ($tmplfile); foreach ($this->replacetags as $tag) {$css _content = Str_replace ($tag, $tag. "?". 
    Date (' Ymdhis '), $css _content); 
    } if (!is_dir (DirName ($dfile)) {//Generate target path mkdir (dirname ($dfile), 0755, true); 
  } file_put_contents ($dfile, $css _content, True); /** Output */Private Function response ($content) {echo $content. " 
  <br> ";

 }}?>

The Demo sample program is as follows:

<?php 
require_once "CSSUpdate.class.php"; 
 
Define (' Root_path ', DirName (__file__)); 
$css _path = Root_path. ' /css '; 
$csstmpl _path = Root_path. ' /csstmpl '; 
$replacetags = Array ('. png ', '. jpg ', '. gif '); 
 
$cssobj = new Cssupdate ($csstmpl _path, $css _path, $replacetags); 
$cssobj->update (); 
? >

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