大约有 16,000 项符合查询结果(耗时:0.0184秒) [XML]

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“Cannot send session cache limiter - headers already sent” [duplicate]

... do in your PHP file (so put it at the absolute beginning, before all HTML etc). share | improve this answer | follow | ...
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Unicode与UTF-8互转(C语言实现) - C/C++ - 清泛网 - 专注C/C++及内核技术

...体系, 可以表示最多256个符号. 但是, 这里又出现了新的问题. 不同的国家有不同的字母, 因此, 哪怕它们都使用256个 符号的编码方式, 代表的字母却不一样. 比如, 130在法语编码中代表了é, 在希伯来语 编码中却代表了字母G...
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Deep Learning(深度学习)学习笔记整理系列之(一) - 大数据 & AI - 清泛...

...是怎么来的?又能干什么呢?目前存在哪些困难呢?这些问题的简答都需要慢慢来。咱们先来了解下机器学习(人工智能的核心)的背景。 二、背景 机器学习(Machine Learning)是一门专门研究计算机怎样模拟或实现人类...
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How can I check if a URL exists via PHP?

...returned by get_headers() are well formed. Use curl (if you can). Prevent fetching the entire body/content, but only request the headers. Consider redirecting urls: Do you want the first code returned? Or follow all redirects and return the last code? You might end up with a 200, but it could redire...
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cleanest way to skip a foreach if array is empty [duplicate]

...anguage. PHP variable can store anything, that's why is_array, is_numeric, etc are needed functions. – Daniel Wu Nov 22 '19 at 5:41 add a comment  |  ...
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Loop code for each file in a directory [duplicate]

... Try GLOB() $dir = "/etc/php5/*"; // Open a known directory, and proceed to read its contents foreach(glob($dir) as $file) { echo "filename: $file : filetype: " . filetype($file) . "<br />"; } ...
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How do you debug PHP scripts? [closed]

... Platform. That gives proper debugging, breakpoints/stepping over the code etc., although at a price. share answered Aug 3 '08 at 23:20 ...
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How do PHP sessions work? (not “how are they used?”)

...ions in PHP are started by using the session_start( ) function. Like the setcookie( ) function, the session_start( ) function must come before any HTML, including blank lines, on the page. It will look like this: <?php session_start( );?><html><head> ....... etc The session_star...
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Why are functions and methods in PHP case-insensitive?

...parser slowly grew to include conditional tags, then loop tags, functions, etc. At no point did I think I was writing a scripting language. I was simply adding a little bit of functionality to the macro replacement parser. I was still writing all my real business logic in C. I have read somewhere t...
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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C/C++及内核技术

...层传输之上提供完全相同的行为。 这种方法存在两个问题: 一,在特定的传输之上建立类TCP的封装实际上使得传输成为多余的了。如果这种方法的行为类似于TCP,那么为什么一开始就不用TCP呢?(性能特性排除在这个规...