Write the binary form of the file using php
xxd filename
can display the binary form of a file on the terminal without considering the encoding of the file.
How to achieve the same function using php?
1.fopen
2.fread
3.ehco doesn’t work. It cannot display the binary of the text. What is displayed is the text. How can I do this?
I wrote a piece of code
<code><?php $target="test.txt"; $file_handle = fopen($target, "rb"); while (!feof($file_handle)) { $byte = fread($file_handle,1); echo $byte; } fclose($file_handle ); ?> </code>
I found that it doesn’t work. What is displayed is the character itself, not the binary expression of the character.
It is expected that this ehco will need to be modified. Please tell me how to modify it.
fwrite(STDOUT,$byte); does not work even if you replace echo $byte;.
After revising it, it’s not far from success.
<code><?php function parse($target){ $file_handle = fopen($target, "rb"); while (!feof($file_handle)) { $byte = fread($file_handle,1); echo base_convert(ord($byte),10,2); } fclose($file_handle ); } parse('test.txt'); ?> 用一个只包含换行键的文件测试 xxd -b ./test.txt 0000000: 00001010 我的程序运行结果是: 10100</code>
Reply content:
xxd filename
can display the binary form of a file on the terminal without considering the encoding of the file.
How to achieve the same function using php?
1.fopen
2.fread
3.ehco doesn’t work. It cannot display the binary of the text. What is displayed is the text. How can I do this?
I wrote a piece of code
<code><?php $target="test.txt"; $file_handle = fopen($target, "rb"); while (!feof($file_handle)) { $byte = fread($file_handle,1); echo $byte; } fclose($file_handle ); ?> </code>
I found that it doesn’t work. What is displayed is the character itself, not the binary expression of the character.
It is expected that this ehco will need to be modified. Please tell me how to modify it.
fwrite(STDOUT,$byte); does not work even if you replace echo $byte;.
After revising it, it’s not far from success.
<code><?php function parse($target){ $file_handle = fopen($target, "rb"); while (!feof($file_handle)) { $byte = fread($file_handle,1); echo base_convert(ord($byte),10,2); } fclose($file_handle ); } parse('test.txt'); ?> 用一个只包含换行键的文件测试 xxd -b ./test.txt 0000000: 00001010 我的程序运行结果是: 10100</code>
The
fopen mode parameter is changed to b after the basic mode, such as rb
, which is used to distinguish binary streams and text files.
Correspondingly, you can also use 'b' to force binary mode so that the data will not be converted. To use these tags, either use 'b' or 't' as the last character of the mode parameter
base64 encoding on the server side and base64 decoding on the client side
<code><?php $target="test.txt"; $file_handle = fopen($target, "rb"); while (!feof($file_handle)) { $byte = fread($file_handle,1); fwrite(STDOUT,$byte); } fclose($file_handle ); ?></code>
Operation using PHP output and input streams
<code>function strToTwo($str) { $res = ''; $len = strlen($str); for($i = 0; $i < $len; $i++) { $tmp = base_convert(ord($str[$i]), 10, 2); $res .= $tmp . ' '; } return trim($res); } var_dump(strToTwo("严"));</code>
UTF8 encoding. It should be right this time.

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

In this chapter, we will understand the Environment Variables, General Configuration, Database Configuration and Email Configuration in CakePHP.

PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

To work with date and time in cakephp4, we are going to make use of the available FrozenTime class.

To work on file upload we are going to use the form helper. Here, is an example for file upload.

In this chapter, we are going to learn the following topics related to routing ?

CakePHP is an open-source framework for PHP. It is intended to make developing, deploying and maintaining applications much easier. CakePHP is based on a MVC-like architecture that is both powerful and easy to grasp. Models, Views, and Controllers gu

Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

Validator can be created by adding the following two lines in the controller.
