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507问题求助 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
各位大佬们帮我看看为什么我的app会出现蓝牙无法连接问题，我是根据其他人的逻辑设计做下来的，但是我的手机连接不上蓝牙模块，会显示507问题
PHP - Get bool to echo false when false
...rnate development is so so so much cleaner & stronger than even modest PHP systems. I could find plenty of people who were confused.. stackoverflow.com/questions/9042002/… but I couldn't find any reference as to a real reason for this design "feature".
– Thomas W
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Android中Java和JavaScript交互 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ChromeClient() {});
Uncaught ReferenceError: functionName is not defined
问题出现原因，网页的js代码没有加载完成，就调用了js方法。解决方法是在网页加载完成之后调用js方法：
myWebView.setWebViewClient(new WebViewClient() {
@Override
public void o...
Running a Python script from PHP
I'm trying to run a Python script from PHP using the following command:
9 Answers
9
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PHP Array to CSV
...SV($data); function array_to_CSV($data) { $outstream = fopen("php://output", 'r+'); fputcsv($outstream, $data, ',', '"'); rewind($outstream); $csv = fgets($outstream); fclose($outstream); return $csv; }
– JohnnyFaldo
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What is an abstract class in PHP?
What is an abstract class in PHP?
7 Answers
7
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PHP file_get_contents() and setting request headers
With PHP, is it possible to send HTTP headers with file_get_contents() ?
7 Answers
7...
Setting environment variables for accessing in PHP when using Apache
I have a Linux environment and I have a PHP Web Application that conditionally runs based on environment variables using getenv in PHP. I need to know how these environment variables need to be set for the application to work correctly. I am not sure how to set this up on Apache.
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How to check if a user likes my Facebook Page or URL using Facebook's API
...er or enter a promotion participant." - facebook.com/promotions_guidelines.php
– Chris Jacob
May 18 '11 at 1:25
1
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How to clear APC cache entries?
...o clear all APC cache entries when I deploy a new version of the site.
APC.php has a button for clearing all opcode caches, but I don't see buttons for clearing all User Entries, or all System Entries, or all Per-Directory Entries.
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