PHP write cache _ PHP Tutorial

PHP write cache. Write cache $ menu_queryexequery ($ connection, SELECTct. idastid, ct. type_name, mb. id, mb. cookname, mb. price, mb. description, mb. pinyinFROMcook_typectLEFTJOINmenubook // write cache
$ Menu_query = exequery ($ connection, "SELECT ct. id as tid, ct. type_name, mb. id, mb. cookname,
Mb. price, mb. description, mb. pinyin FROM cook_type ct left join menubook mb ON ct. id = mb. cook_type WHERE
Mb. id = ". $ cook_id );
$ Menu_result = mysql_fetch_array ($ menu_query );

// Echo "menu id:". $ cook_id. "; Category id:". $ menu_result [tid]; exit;
// This menu
$ Row [mid] = $ cook_id;
$ Row [menu_name] = $ cook_name;
$ Row [description] = $ description;
$ Row [menu_price] = $ cook_price;
$ Row [pinyin] = ChangeToPinyin (iconv ("UTF-8", "gb2312", $ cook_name), 1 );

If (file_exists ("./menubook. php "))
{
Require_once ("./menubook. php ");
}


If (is_array ($ menu_cache )&&! Empty ($ menu_cache ))
{
$ Classnum = count ($ menu_cache );
$ Unmatchnum = 0;
For ($ I = 0; $ I <$ classnum; $ I ++)
{
If ($ menu_result [tid]! = $ Menu_cache [$ I] [tid])
{
$ Unmatchnum ++;
Continue;
}
Else // locate the category and continue searching for whether the cache of the course exists
{
$ Cartenum = count ($ menu_cache [$ I] [list]);
$ Unmarrynum = 0;
For ($ j = 0; $ j <$ cartenum; $ j ++)
{
If ($ menu_cache [$ I] [list] [$ j] [mid]! = $ Cook_id)
{
$ Unmarrynum ++;
Continue;
}
Else // modify the menu
{
$ Menu_cache [$ I] [list] [$ j] [menu_name] = $ cook_name;
$ Menu_cache [$ I] [list] [$ j] [description] = $ description;
$ Menu_cache [$ I] [list] [$ j] [menu_price] = $ cook_price;
$ Menu_cache [$ I] [list] [$ j] [pinyin] = $ row [pinyin];
}
}

// Newly added menu
If ($ cartenum = $ unmarrynum)
{
$ Menu_cache [$ I] [list] [] = $ row;
}
}
}

// Category not found
If ($ unmatchnum = $ classnum)
{
$ Type_row [tid] = $ menu_result [tid];
$ Type_row [type_name] = $ menu_result [type_name];
$ Type_row [list] [0] = $ row;

$ Menu_cache [] = $ type_row;

}
}
Else {// array generation
$ Type_row [tid] = $ menu_result [tid];
$ Type_row [type_name] = $ menu_result [type_name];
$ Type_row [list] [0] = $ row;

$ Menu_cache [] = $ type_row;

}
// Print_r ($ menu_cache );
// Write a file
Ob_start ();
Var_export ($ menu_cache );
$ Content = ob_get_contents ();
Ob_end_clean ();

$ Filename = "menubook. php ";
$ Fp = fopen ($ filename, "w ");
Fwrite ($ fp ," ");
Fclose ($ fp );

2. add menu and write to cache

$ Str = ChangeToPinyin (iconv ("UTF-8", "gb2312", $ cook_name), 1 );
$ Query_cook_add = "insert into menubook (cookname, price, cook_type, description, pinyin) values (". $ cook_name. ",". $ cook_price. ",". $ cook_type. ",". $ description. ",". $ str. ")";
$ Cursor_cook_add = exequery ($ connection, $ query_cook_add );
$ Cook_id = mysql_insert_id ();

$ Menutype_query = exequery ($ connection, "SELECT type_name FROM cook_type WHERE id =". $ cook_type );
$ Menutype_result = mysql_fetch_array ($ menutype_query );


// This menu
$ Row [mid] = $ cook_id;
$ Row [menu_name] = $ cook_name;
$ Row [description] = $ description;
$ Row [menu_price] = $ cook_price;
$ Row [pinyin] = $ str;

If (file_exists ("./menubook. php "))
{
Require_once ("./menubook. php ");
}

If (is_array ($ menu_cache )&&! Empty ($ menu_cache ))
{
$ Classnum = count ($ menu_cache );
$ Unmatchnum = 0;
For ($ I = 0; $ I <$ classnum; $ I ++)
{
If ($ cook_type! = $ Menu_cache [$ I] [tid])
{
$ Unmatchnum ++;
Continue;
}
Else // locate the category and add and modify the cache of the product dishes
{
$ Menu_cache [$ I] [list] [] = $ row;
}

}
If ($ classnum = $ unmatchnum) // no category is found
{
$ Type_row [tid] = $ cook_type;
$ Type_row [type_name] = $ menutype_result [type_name];
$ Type_row [list] [0] = $ row;

$ Menu_cache [] = $ type_row;

}
}

Else {// array generation
$ Type_row [tid] = $ cook_type;
$ Type_row [type_name] = $ menutype_result [type_name];
$ Type_row [list] [0] = $ row;

$ Menu_c

Explain $ menu_query = exequery ($ connection, SELECT ct. id as tid, ct. type_name, mb. id, mb. cookname, mb. price, mb. description, mb. pinyin FROM cook_type ct left join menubook...