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select count(*) from table of mysql in php
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@eichertc the php interpreter has the variable always internal, as he needs to have the result in memory one way or the other. So your way just makes the code worser to read and maintain, IMHO.
– Tom
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appending array to FormData and send via AJAX
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You have several options:
Convert it to a JSON string, then parse it in PHP (recommended)
JS
var json_arr = JSON.stringify(arr);
PHP
$arr = json_decode($_POST['arr']);
Or use @Curios's method
Sending an array via FormData.
Not recommended: Serialize the data with, then deserialize in PHP
JS
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jQuery Ajax File Upload
...ed to use the XHR object but could not get results on the server side with PHP.
var formData = new FormData();
formData.append('file', $('#file')[0].files[0]);
$.ajax({
url : 'upload.php',
type : 'POST',
data : formData,
processData: false, // tell jQuery not to proces...
PHP & mySQL: Year 2038 Bug: What is it? How to solve it?
...fficient - a long long type in GNU C and POSIX/SuS, or sprintf('%u'...) in PHP or the BCmath extension.
What are some potentially breaking use cases even though we're not yet in 2038?
So a MySQL DATETIME has a range of 1000-9999, but TIMESTAMP only has a range of 1970-2038. If your system stores...
Best way to create an empty object in JSON with PHP?
...ght therefor say that your code is valid and that it's the method to use.
PHP: Objects - Manual
If a value of any other type is converted to an object, a new instance of the stdClass built-in class is created. If the value was NULL, the new instance will be empty.
.. but, try to keep it safe!
Tho...
How to remove the first character of string in PHP?
How to use PHP , Remove the first character :
13 Answers
13
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How to fix getImageData() error The canvas has been tainted by cross-origin data?
...".
Would it work for you to save a copy of the image to your server using PHP and then just load the new image? For example, you could send the URL to the PHP script and save it to your server, then return the new filename to your javascript like this:
<?php //The name of this file in this exam...
Website screenshots
Is there any way of taking a screenshot of a website in PHP, then saving it to a file?
26 Answers
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数据挖掘——分词入门 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...词典的分词，这种方式简单暴力可以解决百分之七八十的问题。基于词典的分词大概分为以下几种方式：
1、正向最大匹配，沿着我们看到的句子逐字拆分后组合成词语到词典里去匹配，直到匹配不到词语为止。举个实际的例子...
BugTrap：程序崩溃快照、bug跟踪之利器 - C/C++ - 清泛网 - 专注C/C++及内核技术
...查看详细的按钮)
// BTF_DESCRIBEERROR：发送报告之前弹出问题描述对话框，让用户输入错误描述信息
BT_SetFlags(BTF_DETAILEDMODE | BTF_ATTACHREPORT | BTF_SCREENCAPTURE);
BT_SetSupportServer(_T("www.tsingfun.com"), 9999);
BT_SetSupportURL(_T("https://www.tsi...