Index.htm file content:
<Html>
<Head>
<Body>
<! -- BEGIN RowSort -->
{SortList} <br>
<! -- END RowSort -->
</Body>
</Head>
</Html>
Index. php content:
<?
$ T-> set_file ("Index", "index.htm ");
$ T-> set_block ("Index", "RowSort", "RowsSort ");
........................................ ......
... $ List_sort ...................
$ T-> set_var ("SortList", $ list_sort );
$ T-> parse ("RowsSort", "RowSort", true );
........................................ ......
........................................ ......
$ T-> parse ("OUT", "Index ");
$ T-> p ("OUT ");
?>
Detailed analysis process:
1. $ t-> set_file ("Index", "index.htm"); $ this-> file [index] = index.htm
Ii. $ t-> set_block ("Index", "RowSort", "RowsSort ");
1. Load the index.htm content of the indexfile and assign it to the variable $ this-> varvals [index]
2. $ str = $ this-> varvals [index] Get Template File Content
3. Use the preg_match_all function to match the content in the corresponding block (RowSort) in the template file and store it in $ m [1] [0 ].
4. Why 0? Replace the content (including the header and tail) in the Φ Phi shortlock (RowSort) with {RowSort}
5. Variable $ this-> varvals [RowSort] = $ m [1] [0], $ this-> varkeys [RowSort] =/{RowSort }/
6. Variable $ this-> varvals [index] = $ str (the content has changed, see step 1), $ this-> varkeys [index] =/{index }/
Iii. $ t-> set_var ("SortList", $ list_sort );
Set $ this-> varvals [SortList] = $ list_sort
Set $ this-> varkeys [SortList] =/{SortList }/
4. $ t-> parse ("RowsSort", "RowSort", true); (this operation is repeated based on the sort size)
1. Use the subst function to process all variable values in the $ this-> varvals array against the special characters and $ contained in the values (replace $ with $ and $ respectively, in this way, you can ensure that the next step of preg_replace is not unexpected) and assign it to the $ varvals_quoted array.
2. $ str = $ this-> varvals [RowSort]
3. We can see that $ str contains a {SortList}, which is composed of three: $ this-> varkeys [SortList] =/{SortList }/, $ this-> varvals [SortList] = $ list_sort
4. After preg_replace, we can see that $ str is the content after the PHP template variable {SortList} has been parsed, and $ str is returned.
5. assign a continuation value to $ this-> varvals [RowSort] // you may consider that the {RowSort} was not resolved at the beginning of the display, so don't worry, if phplib has the finish function, it will be processed according to your requirements.
5. $ t-> parse ("OUT", "Index ");
1. As you can see, $ this-> varvals [index] has a PHP template variable to be parsed, that is, {RowSort}
2. In the previous steps, we have resolved the content of $ this-> varvals [RowSort ].
3. In this way, all the PHP template variables have been parsed and assigned to the variable $ this-> varvals [OUT].
6. $ t-> p ["OUT"];
Obviously, the p function in phplib is the output function. We can output $ this-> varvals [OUT] directly.
// Note that the PHP template variable that has not been parsed is automatically executed by phplib.
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