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PHP的数据类型
小臣
Original
982 people have browsed it

PHP的数据类型有四种、8个

一、标量类型

  1. 整型(integer)

  2. 浮点型(floor)

  3. 字符串(string)

  4. 布尔型(bloon)

二、复杂类型

  1. 数组(array)

  2. 对象(object)

三、特殊类型

  1. NULL

  2. 资源(resource)

<?php
$a_bool  =  TRUE ;    // 布尔
 $a_str   =  "foo" ;   // 字符串
 $a_str2  =  'foo' ;   // 字符串
 $an_int  =  12 ;      // 整型
 // 获取变量的类型
 echo  gettype ( $a_bool );  // bloon
 echo  gettype ( $a_str );   // string

// 判断是否为整型数字
 if ( is_int ( $an_int )) {
     $an_int  +=  4 ;
}

 // 判断是否为字符串
 if ( is_string ( $a_bool )) {
    echo  "String:  $a_bool " ;
}
 ?>



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