How to convert php string to number

How to convert php strings into numbers: First create a PHP sample file; then convert the strings into integers through the intval function; and finally output the converted numbers through echo.

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Getting the content submitted by the form and getting the value of the query string When doing so, it is often necessary to convert the obtained content. Conversion between strings and numbers in PHP can be achieved through the function intval() and the function strval().

Converting a string into an integer can be achieved through the function intval().

Syntax:

int intval ( mixed var [, int base])

Function:

intval() function returns the integer value of variable var by using a specific base conversion (default is decimal).

Converting numbers to strings can be achieved through the function strval().

Syntax:

string strval ( mixed var)

Function:

strval() function is used to return the string value corresponding to the variable var.

In PHP, you can get the type of any variable through the function gettype().

Syntax:

string gettype( mixed var)

Function:

The gettype() function is used to return the type of variable var.

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