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settype

(PHP 4, PHP 5, PHP 7)

settype — Set the type of a variable

Description

代码语言:javascript
复制
bool settype ( mixed &$var , string $type )

Set the type of variable var to type.

Parameters

var

The variable being converted.

type

Possibles values of type are:

  • "boolean" or "bool"
  • "integer" or "int"
  • "float" or "double"
  • "string"
  • "array"
  • "object"
  • "null"

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example #1 settype() example

代码语言:javascript
复制
<?php
$foo?=?"5bar";?//?string
$bar?=?true;???//?boolean

settype($foo,?"integer");?//?$foo?is?now?5???(integer)
settype($bar,?"string");??//?$bar?is?now?"1"?(string)
?>

Notes

Note: Maximum value for "int" is PHP_INT_MAX.

See Also

  • gettype() - Get the type of a variable
  • type-casting
  • type-juggling

← serialize

strval →

代码语言:txt
复制
 ? 1997–2017 The PHP Documentation Group

Licensed under the Creative Commons Attribution License v3.0 or later.

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