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Which statement in php can output variable type

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Release： 2024-04-26 07:30:24
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PHP 中可用于输出变量类型的语句为：使用 gettype() 函数。

Which statement in php can output variable type

PHP 中输出变量类型的语句

以下 PHP 语句可以输出变量类型：

<code class="php">gettype()</code>
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使用 gettype() 函数

gettype() 函数返回一个字符串，表示变量的类型。该字符串包含以下类型之一：

  • boolean：布尔值
  • integer：整数
  • double：浮点数
  • string：字符串
  • array：数组
  • object：对象

示例

以下示例演示如何使用 gettype() 函数输出变量类型：

<code class="php">$x = 10;
$y = "Hello";
$z = true;

echo "Type of \$x: " . gettype($x) . "<br>";
echo "Type of \$y: " . gettype($y) . "<br>";
echo "Type of \$z: " . gettype($z) . "<br>";</code>
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输出：

<code>Type of $x: integer<br>
Type of $y: string<br>
Type of $z: boolean<br></code>
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