大数组作数组下标时的问题
测试代码如下:
$int = 135893597710;print_r($int);print_r(array($int=>1));
输出结果在windows上是135893597710Array ( [-1545355762] => 1 )
到linux的时候就能得到正确的结果135893597710Array ( [135893597710] => 1 )
请问如何可以在windows上得到正确的结果
回复讨论(解决方案)
<?php$int = '135893597710';print_r($int);print_r(array($int=>1));?>
现在的问题是,生产服是linux,里面有一批数据是serialize处理后存储的,现在我导到本地后,没办法还原,因为里面有些数组的下标就是这种很大的数字。所以,如果我想在本地使用生产服的数据抢建测试环境,必须解决上面的测试代码的输出问题
你的 linux 是 64 位的?似乎也不应该出现这种问题
先不去管他吧,等有 64位 linux 的朋友测试以后再说
假定序列化后的是这样的串:a:1:{i:135893597710;i:123;}
则有
$s = 'a:1:{i:135893597710;i:123;}';$s = preg_replace_callback('/i:(\d{10,});/', function($r) { return sprintf('s:%d:"%s";', strlen($r[1]), $r[1]); }, $s); //将大整数改成字符串print_r(unserialize($s)); //检查反序列化结果
(
[135893597710] => 123
)
生产服是Linux64位,但是我的windows也是64位呀,我还把php也换成64位的,未遂
目前决定先用楼上的办法吧,毕竟只是测试环境,能用就好了,先不纠结了。不过如果有朋友能找到真正的原因更好~
你的windows也是64位的?那么你能自己编译 php 吗?
php 并没有发行 for window 的 64位版本
php有第三方编译的x64
不过
测试最大int仍然是2^32-1 (win7 x64)
你的windows也是64位的?那么你能自己编译 php 吗?
php 并没有发行 for window 的 64位版本
我自己编译的64位php和网上下载的wamp64位版本,都不行
既然你能自己编译 php,那么请检查一下 64位编译开关打开没有
另外一定是要 VC9 以上的编译器,最好是 VC10 以上的

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

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

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











PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

In PHP, password_hash and password_verify functions should be used to implement secure password hashing, and MD5 or SHA1 should not be used. 1) password_hash generates a hash containing salt values to enhance security. 2) Password_verify verify password and ensure security by comparing hash values. 3) MD5 and SHA1 are vulnerable and lack salt values, and are not suitable for modern password security.

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

HTTP request methods include GET, POST, PUT and DELETE, which are used to obtain, submit, update and delete resources respectively. 1. The GET method is used to obtain resources and is suitable for read operations. 2. The POST method is used to submit data and is often used to create new resources. 3. The PUT method is used to update resources and is suitable for complete updates. 4. The DELETE method is used to delete resources and is suitable for deletion operations.

In PHPOOP, self:: refers to the current class, parent:: refers to the parent class, static:: is used for late static binding. 1.self:: is used for static method and constant calls, but does not support late static binding. 2.parent:: is used for subclasses to call parent class methods, and private methods cannot be accessed. 3.static:: supports late static binding, suitable for inheritance and polymorphism, but may affect the readability of the code.

PHP handles file uploads through the $\_FILES variable. The methods to ensure security include: 1. Check upload errors, 2. Verify file type and size, 3. Prevent file overwriting, 4. Move files to a permanent storage location.

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.
