在PHP中，IntlChar charDirection()函数的作用是返回给定字符的方向属性

IntlChar charDirection() 函数用于显示输入值的双向类别值。

语法

int IntlChar::charDirection(val)

参数

• val - 编码为 UTF-8 字符串的整数或字符。

返回

IntlChar charDirection() 函数返回以下双向类别值 -

• IntlChar::CHAR_DIRECTION_LEFT_TO_RIGHT

  立即学习“PHP免费学习笔记（深入）”；

  li>

• IntlChar::CHAR_DIRECTION_RIGHT_TO_LEFT

• IntlChar::CHAR_DIRECTION_EUROPEAN_NUMBER

• IntlChar::CHAR_DIRECTION_EUROPEAN_NUMBER_SEPARATOR p>

• IntlChar::CHAR_DIRECTION_EUROPEAN_NUMBER_TERMINATOR

• IntlChar::CHAR_DIRECTION_ARABIC_NUMBER

• IntlChar: :CHAR_DIRECTION_COMMON_NUMBER_SEPARATOR

• IntlChar::CHAR_DIRECTION_BLOCK_SEPARATOR

• IntlChar::CHAR_DIRECTION_SEGMENT_SEPARATOR

• IntlChar::CHAR_DIRECTION_WHITE_SPACE_NEUTRAL

• IntlChar::CHAR_DIRECTION_OTHER_NEUTRAL

• IntlChar::CHAR_DIRECTION_LEFT_TO_RIGHT_EMBEDDING

  

  Facet

  Facet.ai是一款AI图像生成和编辑工具，具备实时图像生成和编辑功能

  下载

• IntlChar::CHAR_DIRECTION_LEFT_TO_RIGHT_OVERRIDE

• IntlChar::CHAR_DIRECTION_RIGHT_TO_LEFT_ARABIC

• IntlChar::CHAR_DIRECTION_RIGHT_TO_LEFT_EMBEDDING

• IntlChar::CHAR_DIRECTION_RIGHT_TO_LEFT_OVERRIDE

• IntlChar::CHAR_DIRECTION_POP_DIRECTIONAL_FORMAT

• IntlChar::CHAR_DIRECTION_DIR_NON_SPACING_MARK

• IntlChar::CHAR_DIRECTION_BOUNDARY_NEUTRAL

• IntlChar::CHAR_DIRECTION_FIRST_STRONG_ISOLATE

• IntlChar::CHAR_DIRECTION_LEFT_TO_RIGHT_ISOLATE

• IntlChar::CHAR_DIRECTION_RIGHT_TO_LEFT_ISOLATE

• IntlChar::CHAR_DIRECTION_POP_DIRECTIONAL_ISOLATE

• IntlChar::CHAR_DIRECTION_CHAR_DIRECTION_COUNT

示例

以下是示例 -

";
   var_dump(IntlChar::charDirection("*"));
   echo "
";
   var_dump(IntlChar::charDirection("kjh"));
   echo "
";
   var_dump(IntlChar::charDirection("H"));
   echo "
";
?>

输出

以下是输出 -

int(3)
int(10)
NULL
int(0)