How php converts characters into numbers

The first conversion method: forced conversion;

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The second conversion method: conversion function, intval (), floatval (), strval ();

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The third conversion method: universal type conversion function settype (mixed var, string type);

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Extended data:

PHP data type conversion is mandatory, and the allowed PHP data types are:

(int), (integer): converted into plastic;

(float), (double), (real): converted to floating-point type;

(String): Convert to a string;

(bool), (boolean): Convert to Boolean type;

(Array): Convert to an array;

(Object): Convert to an object.

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PHP Chinese website-analysis of type conversion