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is_null($x) vs $x === null in PHP [duplicate]

...someone strongly suggested that I use is_null() instead as it is specifically designed for the null-evaluation purpose. He also started talking about math or something. ...
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How to write into a file in PHP?

...on like: file_put_contents($filename, $content); which is identical to calling fopen(), fwrite(), and fclose() successively to write data to a file. Docs: file_put_contents share | improve this ...
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Sending multipart/formdata with jQuery.ajax

...jQuery.ajax(opts); Create FormData from an existing form Instead of manually iterating the files, the FormData object can also be created with the contents of an existing form object: var data = new FormData(jQuery('form')[0]); Use a PHP native array instead of a counter Just name your file e...
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正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...,所以本页排版比较混乱,推荐你到原处查看,看完了如果有问题,再到这里来提出. 一些要说的话: 如果你没有正则表达式的基础,请跟着教程“一步步来”。请不要大概地扫两眼就说看不懂——以这种态度我写成什么样你也看...
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fstream默认不支持中文路径和输出整数带逗号的解决办法 - C/C++ - 清泛网 -...

...中的i值显示为123,456,789,出现了逗号。这是因为中文习惯问题。我们在读取文件的时候,读入i值时,可能读入一个值为123的整数,并不是我们希望的123456789,所以我们写文件时,希望不要写入逗号。一个办法是现将整数转换为...
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Passing arrays as url parameter

...5D=4&aParam%5Ba%5D=b&aParam%5Bc%5D=d" http_build_query() handles all the necessary escaping for you (%5B => [ and %5D => ]), so this string is equal to aParam[0]=1&aParam[1]=4&aParam[a]=b&aParam[c]=d. ...
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What is the function __construct used for?

... __construct was introduced in PHP5 and it is the right way to define your, well, constructors (in PHP4 you used the name of the class for a constructor). You are not required to define a constructor in your class, but if you wish to pass any parameters on...
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How to [recursively] Zip a directory in PHP?

...ce), file_get_contents($source)); } return $zip->close(); } Call it like this: Zip('/folder/to/compress/', './compressed.zip'); share | improve this answer | ...
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PHP CURL DELETE request

... I finally solved this myself. If anyone else is having this problem, here is my solution: I created a new method: public function curl_del($path) { $url = $this->__url.$path; $ch = curl_init(); curl_setopt($ch, CU...
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getenv() vs. $_ENV in PHP

... According to the php documentation about getenv, they are exactly the same, except that getenv will look for the variable in a case-insensitive manner. Most of the time it probably doesn't matter, but one of the comments on the documentation...