Use a PHP array for unlimited categorization, without using a database, without using recursion. _php Tutorial

Copy CodeThe code is as follows:

Class Cat
{
Public $data;

Public Function __construct ()
{
@include "data.php";
$this->data = $class;
}


Public Function Createsortlevel ($fatherlevel)
{
if (empty ($fatherlevel))
{
if (Is_array ($this->data))
{
$fast _level = Array ();
foreach ($this->data as $value)
{
if (strlen ($value ["sortlevel"]) = = 3)
{
$fast _level[] = $value ["Sortlevel"];
}
}
$max _fast_level = max ($fast _level);
unset ($fast _level);
$sub = ceil ($max _fast_level) + 1;
Switch (strlen ($sub))
{
Case 1:
Return "00{$sub}";
Break
Case 2:
Return "0{$sub}";
Break
Case 3:
return $sub;
Break
}
}
Else
{
Return "001";
}
}

foreach ($this->data as $val)
{
if (eregi ("^". $fatherlevel. ". {3}$ ", $val [" Sortlevel "]))
{
$level [] = $val ["Sortlevel"];
}
}
if (Is_array ($level))
{
$max _two_level = max ($level);
$sub = Ceil (substr ($max _two_level,-3)) + 1;
Switch (strlen ($sub))
{
Case 1:
Return substr ($max _two_level,0,strlen ($max _two_level)-1). $sub;
Break
Case 2:
Return substr ($max _two_level,0,strlen ($max _two_level)-2). $sub;
Break
Case 3:
Return substr ($max _two_level,0,strlen ($max _two_level)-3). $sub;
Break
}
}
Else
{
return $fatherlevel. " 001 ";
}
}

Public Function orders ()
{
$op = $this->data;
$this->array_usort ($op, "Sortlevel", SORT_ASC);
return $op;
}

Public Function Add_cat ($sortname, $sortlevel)
{
$data = time ();
$arr = array
(
' {$data} ' = array
(
"Sortname" = $sortname,
"Sortlevel" = $this->createsortlevel ($sortlevel)
)
);
$rs = $this->data + $arr;
$this->add_wirte ($RS);
}

Private Function Array_usort (& $array)
{
$args = Func_get_args ();
For ($i =1, $cmd = ", $size =count ($args); $i < $size; $i + +)
{
$num = $i;
$order = "";
$con = "@strcmp ($a [' $args [$num] ', $b [' $args [$num] '])";
while (+ + $i < $size)
{
if ($args [$i] = = = Sort_numeric)
{
$con = "($a [' $args [$num] ']-$b [' $args [$num] '])";
}
else if ($args [$i] = = = Sort_desc)
{
$order = " -1*";
}
else if (is_string ($args [$i])
{
$i--;
Break
}
}
$cmd. = "if ($num = $con) return $order $num;else";
if ($order! = ")
{
$i + +;
}
}
@usort ($array, @create_function (' $a, $b ', "$cmd return 0;"));
}

Public Function Wirte ($sortname, $sortlevel)
{
$array = " $array. = ' $class = Array '. " RN (RN ";
$array. = ' "'. Time (). '" = = Array '. " RN ";
$array. = ' ('. ') RN ";
$array. = ' "Sortname" + "'. $sortname. '". ", RN";
$array. = ' "Sortlevel" = "". $this->createsortlevel ($sortlevel). ' "." RN ";
$array. = ') '. ' RN ";
$array. = ") rn?>";
File_put_contents ("data.php", $array);
}

Public Function Add_wirte ($RS)
{
$array = " $array. = ' $class = Array '. " RN (RN ";
foreach ($rs as $key = $value)
{
$array. = "RN";
$array. = ' "'. $key. '" = "=". " RN ";
$array. = ' ('. ') RN ";
$array. = ' "Sortname" + "'. $value [" Sortname "]. '" '. ", RN";
$array. = ' "Sortlevel" + "". $value ["Sortlevel"]. ' "." RN ";
$array. = '), ';
}
$array = substr ($array, 0,-1);
$array. = "rn) rn?>";
File_put_contents ("data.php", $array);
}
}


$cat = new Cat ();
if ($_get["action"] = = "Add")
{
if (strlen ($_post["Sortname") < 2)
{
Echo ';
Echo ';
Exit
}
if (file_exists ("data.php"))
{
$cat->add_cat ($_post["Sortname"],$_post["Sortlevel"]);
Echo ';
Echo ';
Exit
}
Else
{
$cat->wirte ($_post["Sortname"],$_post["Sortlevel"]);
Echo ';
Echo ';
Exit
Exit
}
}

if ($_get["action"] = = "TPL")
{
Echo ' ";
Exit
}

foreach ($cat->orders () as $value)
{
$level = strlen (substr ($value [' Sortlevel '],0,-3));
for ($i = 0; $i < $level; $i + +)
{
echo "-";
}
echo $value ["Sortname"];
echo "
";
}
?>

http://www.bkjia.com/PHPjc/317449.html www.bkjia.com true http://www.bkjia.com/PHPjc/317449.html techarticle Copy the code as follows: PHP classcat {public$data; Publicfunction__construct () {@include "data.php"; $this-data= $class;} public Functioncreatesortlevel ($fatherlevel) {if (Empt ...

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