PHP IntlChar charType()用法及代码示例

IntlChar::charType()函数是PHP中的内置函数，用于获取代码点的常规类别值。此函数返回代码点的常规类别值。

用法:

int IntlChar::charType ( $codepoint )

参数：该函数接受单个参数$codepoint，该参数是必需的。 $codepoint值是整数值或字符，被编码为UTF-8字符串。

返回值：此函数返回以下列出的常规类别内容：

• IntlChar::CHAR_CATEGORY_UNASSIGNED
• IntlChar::CHAR_CATEGORY_GENERAL_OTHER_TYPES
• IntlChar::CHAR_CATEGORY_UPPERCASE_LETTER
• IntlChar::CHAR_CATEGORY_LOWERCASE_LETTER
• IntlChar::CHAR_CATEGORY_TITLECASE_LETTER
• IntlChar::CHAR_CATEGORY_MODIFIER_LETTER
• IntlChar::CHAR_CATEGORY_OTHER_LETTER
• IntlChar::CHAR_CATEGORY_NON_SPACING_MARK
• IntlChar::CHAR_CATEGORY_ENCLOSING_MARK
• IntlChar::CHAR_CATEGORY_COMBINING_SPACING_MARK
• IntlChar::CHAR_CATEGORY_DECIMAL_DIGIT_NUMBER
• IntlChar::CHAR_CATEGORY_LETTER_NUMBER
• IntlChar::CHAR_CATEGORY_OTHER_NUMBER
• IntlChar::CHAR_CATEGORY_SPACE_SEPARATOR
• IntlChar::CHAR_CATEGORY_LINE_SEPARATOR
• IntlChar::CHAR_CATEGORY_PARAGRAPH_SEPARATOR
• IntlChar::CHAR_CATEGORY_CONTROL_CHAR
• IntlChar::CHAR_CATEGORY_FORMAT_CHAR
• IntlChar::CHAR_CATEGORY_PRIVATE_USE_CHAR
• IntlChar::CHAR_CATEGORY_SURROGATE
• IntlChar::CHAR_CATEGORY_DASH_PUNCTUATION
• IntlChar::CHAR_CATEGORY_START_PUNCTUATION
• IntlChar::CHAR_CATEGORY_END_PUNCTUATION
• IntlChar::CHAR_CATEGORY_CONNECTOR_PUNCTUATION
• IntlChar::CHAR_CATEGORY_OTHER_PUNCTUATION
• IntlChar::CHAR_CATEGORY_MATH_SYMBOL
• IntlChar::CHAR_CATEGORY_CURRENCY_SYMBOL
• IntlChar::CHAR_CATEGORY_MODIFIER_SYMBOL
• IntlChar::CHAR_CATEGORY_OTHER_SYMBOL
• IntlChar::CHAR_CATEGORY_INITIAL_PUNCTUATION
• IntlChar::CHAR_CATEGORY_FINAL_PUNCTUATION
• IntlChar::CHAR_CATEGORY_CHAR_CATEGORY_COUNT

以下示例程序旨在说明PHP中的IntlChar::charType()函数：

程序1:

<?php 
  
// PHP code to illustrate IntlChar::charType() 
// function 
  
// Input data is character type 
var_dump(IntlChar::charType("A") ===  
  IntlChar::CHAR_CATEGORY_UPPERCASE_LETTER); 
  
// Input data is character type 
var_dump(IntlChar::charType(".") ===  
 IntlChar::CHAR_CATEGORY_OTHER_PUNCTUATION); 
  
// Input data is character type 
var_dump(IntlChar::charType("\t") ===  
      IntlChar::CHAR_CATEGORY_CONTROL_CHAR); 
  
// Input data is unicode character 
var_dump(IntlChar::charType("\u{2603}") ===  
      IntlChar::CHAR_CATEGORY_OTHER_SYMBOL); 
  
// Input data is string type 
var_dump(IntlChar::charType("ABC") ===  
 IntlChar::CHAR_CATEGORY_OTHER_PUNCTUATION); 
  
// Input data is character type 
var_dump(IntlChar::charType("\n") ===  
      IntlChar::CHAR_CATEGORY_CONTROL_CHAR); 
?>

bool(true)
bool(true)
bool(true)
bool(true)
bool(false)
bool(true)

程序2:

<?php 
  
// PHP code to illustrate IntlChar::charType() 
// function 
  
// Input data is character type 
var_dump(IntlChar::charType("A")); 
  
// Input data is character type 
var_dump(IntlChar::charType(".")); 
  
// Input data is character type 
var_dump(IntlChar::charType("\t")); 
  
// Input data is unicode character 
var_dump(IntlChar::charType("\u{2603}")); 
  
// Input data is string type 
var_dump(IntlChar::charType("ABC")); 
  
// Input data is character type 
var_dump(IntlChar::charType("\n")); 
?>

int(1)
int(23)
int(15)
int(27)
NULL
int(15)

相关文章：

• PHP | IntlChar::charDigitValue()函数
• PHP - IntlChar isMirrored()用法及代码示例
• PHP | IntlChar::isspace()函数

参考： http://php.net/manual/en/intlchar.chartype.php