模板类不与str_replace一起循环 [英] Template class not looping with str_replace
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问题描述
<？php
includeincludes / config.php ;
类模板{
var $ page;
var $ built;
public $ block = array（）;
函数_start（$ tpl）{
$ this-> page = $ tpl;
函数set_array（$ data）{
$ this-> block [] = $ data;
foreach（$ v $ foreach $ $ $ $ foreach（$ this-> block as $ k => $ v）{
foreach k1 => $ v1）{
// echo $ k1。< br />;
// echo $ v1。< br />;
$ this-> page = str_replace（{。$ k1。}，$ v1，$ this-> page）;
}
}
echo $ this-> page;
}
}
$ template = new template（）;
$ b $ file =< html>
< body>
< p> {CAT}< / p>
< p> {SUBCAT }< / p>
< / body>
< / html>;
$ template-> _start（$ file）;
//类别查询
while（$ row1 = mysql_fetch_assoc（$ cat））{
$ template-> set_array（array（CAT=> ; $ row1 ['title']））;
//子类别查询
while（$ row2 = mysql_fetch_assoc（$ subcat））{
$ template-> set_array（array（SUBCAT= > $ row2 ['title']））;
$ b $ template-> _show（）;
？>
现在，当我回显$ k1或$ v1时，它们以正确的顺序显示键和值
CAT1
SUBCAT1.1
SUBCAT1.2
CAT2
SUBCAT2.1
SUBCAT2.2
但是当它通过str_replace时，它只显示CAT1和SUBCAT1.2出了什么问题？
解决方案
您正在覆盖foreach（）循环中的变量$页面;要么让它成为一个数组，要么追加到变量中。可能是：
function _show（）{
$ this-> page ='';
foreach（$ this-> block as $ k => $ v）{
foreach（$ v as $ k1 => $ v1）{
$ this-> page 。= str_replace（{。$ k1。}，$ v1，$ this-> page）; //每次追加到前一个。正如您所做的那样：
// $ this-> page = str_replace（{。$ k1。}，$ v1，$ this-> page）;
//在这里你覆盖$ this->页面的每一个循环
}
}
echo $ this-> page;
}
Well i have this set of codes
<?php
include "includes/config.php";
class template{
var $page;
var $built;
public $block = array();
function _start($tpl){
$this->page = $tpl;
}
function set_array($data){
$this->block[] = $data;
}
function _show(){
foreach($this->block as $k => $v){
foreach($v as $k1 => $v1){
//echo $k1."<br />";
//echo $v1."<br />";
$this->page = str_replace("{".$k1."}", $v1, $this->page);
}
}
echo $this->page;
}
}
$template = new template();
$file = "<html>
<body>
<p>{CAT}</p>
<p>{SUBCAT}</p>
</body>
</html>";
$template->_start($file);
// Category Query
while($row1 = mysql_fetch_assoc($cat)){
$template->set_array(array("CAT" => $row1['title']));
// Sub Category Query
while($row2 = mysql_fetch_assoc($subcat)){
$template->set_array(array("SUBCAT" => $row2['title']));
}
}
$template->_show();
?>
Now, when i echo $k1 or $v1 they display the keys and values in the correct order like
CAT1 SUBCAT1.1 SUBCAT1.2 CAT2 SUBCAT2.1 SUBCAT2.2
but when it goes through the str_replace its only displays the CAT1 and SUBCAT1.2 what going wrong?
解决方案
You're overwriting the variable $page inside the foreach() loop; either you make it an array or you append to the variable. Could be:
function _show(){
$this->page = '';
foreach($this->block as $k => $v){
foreach($v as $k1 => $v1){
$this->page .= str_replace("{".$k1."}", $v1, $this->page); //appending every time onto the previous. As you were doing:
// $this->page =str_replace("{".$k1."}", $v1, $this->page);
// here you were overwriting $this->page at every passage of the loop
}
}
echo $this->page;
}
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