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PHP to ASCII
From , 3 Years ago, written in PHP, viewed 222 times.
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https://pastebin.vip/view/f4334c13
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<?php
class
ascii
{
function
decode
(
$str
)
{
preg_match_all
(
"/(d{2,5})/"
,
$str
,
$a
)
;
$a
=
$a
[
0
]
;
foreach
(
$a
as
$dec
)
{
if
(
$dec
<
128
)
{
$utf
.=
chr
(
$dec
)
;
}
else
if
(
$dec
<
2048
)
{
$utf
.=
chr
(
192
+
(
(
$dec
-
(
$dec
%
64
)
)
/
64
)
)
;
$utf
.=
chr
(
128
+
(
$dec
%
64
)
)
;
}
else
{
$utf
.=
chr
(
224
+
(
(
$dec
-
(
$dec
%
4096
)
)
/
4096
)
)
;
$utf
.=
chr
(
128
+
(
(
(
$dec
%
4096
)
-
(
$dec
%
64
)
)
/
64
)
)
;
$utf
.=
chr
(
128
+
(
$dec
%
64
)
)
;
}
}
return
$utf
;
}
function
encode
(
$c
)
{
$len
=
strlen
(
$c
)
;
$a
=
0
;
while
(
$a
<
$len
)
{
$ud
=
0
;
if
(
ord
(
$c
{
$a
}
)
>=
0
&&
ord
(
$c
{
$a
}
)
<=
127
)
{
$ud
=
ord
(
$c
{
$a
}
)
;
$a
+=
1
;
}
else
if
(
ord
(
$c
{
$a
}
)
>=
192
&&
ord
(
$c
{
$a
}
)
<=
223
)
{
$ud
=
(
ord
(
$c
{
$a
}
)
-
192
)
*
64
+
(
ord
(
$c
{
$a
+
1
}
)
-
128
)
;
$a
+=
2
;
}
else
if
(
ord
(
$c
{
$a
}
)
>=
224
&&
ord
(
$c
{
$a
}
)
<=
239
)
{
$ud
=
(
ord
(
$c
{
$a
}
)
-
224
)
*
4096
+
(
ord
(
$c
{
$a
+
1
}
)
-
128
)
*
64
+
(
ord
(
$c
{
$a
+
2
}
)
-
128
)
;
$a
+=
3
;
}
else
if
(
ord
(
$c
{
$a
}
)
>=
240
&&
ord
(
$c
{
$a
}
)
<=
247
)
{
$ud
=
(
ord
(
$c
{
$a
}
)
-
240
)
*
262144
+
(
ord
(
$c
{
$a
+
1
}
)
-
128
)
*
4096
+
(
ord
(
$c
{
$a
+
2
}
)
-
128
)
*
64
+
(
ord
(
$c
{
$a
+
3
}
)
-
128
)
;
$a
+=
4
;
}
else
if
(
ord
(
$c
{
$a
}
)
>=
248
&&
ord
(
$c
{
$a
}
)
<=
251
)
{
$ud
=
(
ord
(
$c
{
$a
}
)
-
248
)
*
16777216
+
(
ord
(
$c
{
$a
+
1
}
)
-
128
)
*
262144
+
(
ord
(
$c
{
$a
+
2
}
)
-
128
)
*
4096
+
(
ord
(
$c
{
$a
+
3
}
)
-
128
)
*
64
+
(
ord
(
$c
{
$a
+
4
}
)
-
128
)
;
$a
+=
5
;
}
else
if
(
ord
(
$c
{
$a
}
)
>=
252
&&
ord
(
$c
{
$a
}
)
<=
253
)
{
$ud
=
(
ord
(
$c
{
$a
}
)
-
252
)
*
1073741824
+
(
ord
(
$c
{
$a
+
1
}
)
-
128
)
*
16777216
+
(
ord
(
$c
{
$a
+
2
}
)
-
128
)
*
262144
+
(
ord
(
$c
{
$a
+
3
}
)
-
128
)
*
4096
+
(
ord
(
$c
{
$a
+
4
}
)
-
128
)
*
64
+
(
ord
(
$c
{
$a
+
5
}
)
-
128
)
;
$a
+=
6
;
}
else
if
(
ord
(
$c
{
$a
}
)
>=
254
&&
ord
(
$c
{
$a
}
)
<=
255
)
{
//error
$ud
=
false
;
}
$scill
.=
"&#
$ud
;"
;
}
return
$scill
;
}
}
/*
PHP 转 ASCII
require_once "ascii_class.php";
*/
$aa
=
new
ascii
;
echo
$aa
->
encode
(
"a"
)
;
?>
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<?php class ascii { function decode($str) { preg_match_all( "/(d{2,5})/", $str,$a); $a = $a[0]; foreach ($a as $dec) { if ($dec < 128) { $utf .= chr($dec); } else if ($dec < 2048) { $utf .= chr(192 + (($dec - ($dec % 64)) / 64)); $utf .= chr(128 + ($dec % 64)); } else { $utf .= chr(224 + (($dec - ($dec % 4096)) / 4096)); $utf .= chr(128 + ((($dec % 4096) - ($dec % 64)) / 64)); $utf .= chr(128 + ($dec % 64)); } } return $utf; } function encode($c) { $len = strlen($c); $a = 0; while ($a < $len) { $ud = 0; if (ord($c{$a}) >=0 && ord($c{$a})<=127) { $ud = ord($c{$a}); $a += 1; } else if (ord($c{$a}) >=192 && ord($c{$a})<=223) { $ud = (ord($c{$a})-192)*64 + (ord($c{$a+1})-128); $a += 2; } else if (ord($c{$a}) >=224 && ord($c{$a})<=239) { $ud = (ord($c{$a})-224)*4096 + (ord($c{$a+1})-128)*64 + (ord($c{$a+2})-128); $a += 3; } else if (ord($c{$a}) >=240 && ord($c{$a})<=247) { $ud = (ord($c{$a})-240)*262144 + (ord($c{$a+1})-128)*4096 + (ord($c{$a+2})-128)*64 + (ord($c{$a+3})-128); $a += 4; } else if (ord($c{$a}) >=248 && ord($c{$a})<=251) { $ud = (ord($c{$a})-248)*16777216 + (ord($c{$a+1})-128)*262144 + (ord($c{$a+2})-128)*4096 + (ord($c{$a+3})-128)*64 + (ord($c{$a+4})-128); $a += 5; } else if (ord($c{$a}) >=252 && ord($c{$a})<=253) { $ud = (ord($c{$a})-252)*1073741824 + (ord($c{$a+1})-128)*16777216 + (ord($c{$a+2})-128)*262144 + (ord($c{$a+3})-128)*4096 + (ord($c{$a+4})-128)*64 + (ord($c{$a+5})-128); $a += 6; } else if (ord($c{$a}) >=254 && ord($c{$a})<=255) { //error $ud = false; } $scill .= "&#$ud;"; } return $scill; } } /* PHP 转 ASCII require_once "ascii_class.php"; */ $aa = new ascii; echo $aa -> encode("a"); ?>
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