在PHP中，IntlChar charDirection()函數的作用是傳回給定字元的方向屬性

IntlChar charDirection() 函數用來顯示輸入值的雙向類別值。

語法

int IntlChar::charDirection(val)

參數

• val - 編碼為 UTF-8 字串的整數或字元。

傳回

IntlChar charDirection() 函數傳回以下雙向類別值-

• ##IntlChar::CHAR_DIRECTION_LEFT_TO_RIGHT
  li>
• IntlChar::CHAR_DIRECTION_RIGHT_TO_LEFT

• IntlChar::CHAR_DIRECTION_EUROPEAN_NUMBER

• IntlChar::CHAR_DIRECTION_EUROAN_NU

  p>

##IntlChar#CHAR_DIRECTION_EU

• IntlChar::CHAR_DIRECTION_EUROPEAN_NUMBER_TERMINATOR

• IntlChar::CHAR_DIRECTION_ARABIC_NUMBER

• IntlChar: :0_DIRECTION_COMMON_NU

• #IntlChar: :NU_DIRECTION_COMMON_NU#P_
  #」M
#IntlChar::CHAR_DIRECTION_BLOCK_SEPARATOR
IntlChar::CHAR_DIRECTION_SEGMENT_SEPARATOR
• #IntlChar::CHAR_DIRECTION_WHITE_SPACE_NEUTRA

• ##IntlChar::CHAR_DIRECTION_WHITE_SPACE_NEUTRAL

IntlChar::CHAR_DIRECTION_WHITE_SPACE_NEUTRAL

• IntlChar:: ##Intl？ IntlChar::CHAR_DIRECTION_RIGHT_TO_LEFT_ARABIC

• IntlChar::CHAR_DIRECTION_RIGHT_TO_LEFT_EMBEDDING

• IntlChar::CHAR_DIRECTION :CHAR_DIRECTION_POP_DIRECTIONAL_FORMAT

• IntlChar::CHAR_DIRECTION_DIR_NON_SPACING_MARK

• IntlChar::CHAR_DIRECTION_BOUNDARY_NETRA

• IntlChar::CHAR_DIRECTION_BOUNDARY_NETRALTRAL_ffid_U​​DR3 ##>
  ## IntlChar::CHAR_DIRECTION_LEFT_TO_RIGHT_ISOLATE

• IntlChar::CHAR_DIRECTION_RIGHT_TO_LEFT_ISOLATE
• ##ID

#IntlChar::CHAR_DIRECTION_CHAR_DIRECTION_COUNT
範例

• 以下是範例-

  <?php
     var_dump(IntlChar::charDirection("-"));
     echo "<br>";
     var_dump(IntlChar::charDirection("*"));
     echo "<br>";
     var_dump(IntlChar::charDirection("kjh"));
     echo "<br>";
     var_dump(IntlChar::charDirection("H"));
     echo "<br>";
  ?>

輸出

• # #以下是輸出-

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

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