How to convert characters to numbers in php

The way to convert characters into numbers in php is: you can use the intval() function. This function returns the integer value of the variable by using the specified base conversion. The specific usage method is: [echo intval('42');], in which the integer 42 will be output.

Related function introduction:

intval() function is used to obtain the integer value of a variable.

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intval() function returns the integer value of variable var by using the specified base conversion (default is decimal). intval() cannot be used with object, otherwise an E_NOTICE error will be generated and 1 will be returned.

Function syntax:

int intval ( mixed $var [, int $base = 10 ] )

Parameter description:

• $var: the quantity value to be converted into integer;

• $base: The base used for conversion. If base is 0, the base used is determined by detecting the format of var;

• If the string includes the prefix of "0x" (or "0X"), use hexadecimal (hex);

• If the string starts with "0", use octal (octal);

Return value:

Returns the integer value of var on success, and returns 0 on failure. An empty array returns 0, a non-empty array returns 1.

Code:

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