function emoji_escape($str, $remove = false)
{
$result = '';
for ($i = 0; $i < strlen($str); $i++) {
$emoji = '';
$c1 = ord($str[$i]);
if ($GLOBALS['__Framework']['carrier'] == 's') {
if ($c1 == 0xf7 || $c1 == 0xf9 || $c1 == 0xfb) {
$bin = substr($str, $i, 2);
$emoji = emoji_escape_s($bin);
}
} elseif ($c1 == 0xf8 || $c1 == 0xf9) {
$bin = substr($str, $i, 2);
$emoji = emoji_escape_i($bin);
} elseif (0xf3 <= $c1 && $c1 <= 0xf7) {
$bin = substr($str, $i, 2);
$emoji = emoji_escape_e($bin);
}
if ($emoji) {
if (!$remove) {
$result .= $emoji;
}
$i++;
} else {
$result .= $str[$i];
if (0x81 <= $c1 && $c1 <= 0x9f || 0xe0 <= $c1) {
$result .= $str[$i + 1];
$i++;
}
}
}
return $result;
}
function convert_text_core($str)
{
$result = "";
for ($i = 0; $i < strlen($str); $i++) {
$c = 0;
$c1 = ord($str[$i]);
$c2 = ord($str[$i]);
// E-mail用絵文字から携帯用絵文字に変換
if ($c1 == 0xed || $c1 == 0xee) {
// [e:358] ～ [e:499]、[e:700]～
$c = hexdec(bin2hex(substr($str, $i, 2))) + 1536;
} elseif ($c1 == 0xeb || $c1 == 0xec) {
// [e:1]～[e:357]、[e:500]～[e:518]
$c = hexdec(bin2hex(substr($str, $i, 2))) + 2816;
}
if ($c) {
$bin = array();
$bin[0] = chr($c >> 8);
$bin[1] = chr($c - ($bin[0] << 8));
$emoji = emoji_escape_e($bin);
$result .= $emoji;
$i++;
} else {
$result .= $str[$i];
if (0x81 <= $c1 && $c1 <= 0x9f || 0xe0 <= $c1) {
$result .= $str[$i + 1];
$i++;
}
}
}
return $result;
}
