1.PHP (foreign name: Php:hypertext Preprocessor, Chinese name: "Hypertext Preprocessor") is a common open source scripting language. The grammar absorbs the C language, Java and Perl features, is conducive to learning, widely used, mainly for the
Chapter PHP3 Introduction
PHP is a server built-in script language that makes it possible to quickly develop dynamic web on UNIX.
PHP was conceived by Rasmus Lerdorf in the fall of 1994. The earliest unreleased version was the one he used to keep
Chapter PHP3 Introduction
PHP is a server built-in script language that makes it possible to quickly develop dynamic web on UNIX.
PHP was conceived by Rasmus Lerdorf in the fall of 1994. The earliest unreleased version was the one he used to keep
PHP floating point number accuracy problem summary. PHP floating point number precision problem summary this article mainly introduces the PHP floating point number precision problem summary, this article focuses on the PHP floating point number
PHP floating point precision problem summary, php floating point precision. PHP floating point number precision problem summary, php floating point precision 1, PHP floating point precision loss first look at the following code: Copy the code: $ f0.5
This article analyzes the usage differences between floating-point (float) and integer (integer) data types in PHP and, in that case, insufficient data lengths.
The value can only be true or false, and when other types are converted to Boolean, the
This article mainly introduces the PHP floating point Precision problem summary, this article discusses the PHP floating point precision loss problem emphatically, uses the three paragraph different way to explain this question formation reason and
PHP floating point accuracy problem summary, PHP floating point number accuracy
First, the accuracy of the PHP floating point loss problem
Let's look at the following code:Copy the Code code as follows:$f = 0.57;Echo intval ($f * 100); 56
The
The importance of databases in PHP The PHP field lacks a powerful tool: a language-based mathematical library. In this two-part series, PaulMeagher hopes to inspire PHP developers to develop and implement a PHP-based mathematical library by
PHP floating point Precision problem summary, php floating point Precision
I. Precision loss of PHP floating point numbers
Let's take a look at the following code:Copy codeThe Code is as follows:$ F = 0.57;Echo intval ($ f * 100); // 56
The result
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