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php method to convert integer type to floating point type: 1. Use the floatval() function to obtain the floating point value of the variable. The syntax is "floatval (integer value)"; 2. Use settype( ) function, which can convert variables into specified data types. The syntax is "settype(integer value, "float")".
The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer
php will integer Convert to floating point
Method 1: Use the floatval() function
The floatval function is used to obtain the floating point value of a variable.
floatval cannot be used with arrays or objects.
<?php header("Content-type:text/html;charset=utf-8"); $int = 547; echo '变量的原类型为:'; var_dump($int); $float = floatval($int); echo '变量转换后的类型为:'; var_dump($float); ?>
Method 2: settype() function
settype ($var,$type)
function Used to set variable $var
to the specified data type $type
.
<?php header("Content-type:text/html;charset=utf-8"); $int = 547; echo '变量的原类型为:'; var_dump($int); settype($int,"float"); echo '变量转换后的类型为:'; var_dump($int); ?>
Note: The value of
# The settype() function will change the original variable. Recommended learning: "$type can be:
"boolean" ( or "bool", as of PHP 4.2.0)
- ##"integer" (or "int", as of PHP 4.2.0)
- "float" (only available after PHP 4.2.0, "double" used in older versions is now deprecated)
- "string"
- "array"
- "object"
- "null" (from PHP 4.2.0)
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