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MIT官方已升级至2.71版本，几乎就是仅增加一个全新主题 - App Inventor 2 ...
...tBot 组件添加了一个新块 ConverseWithImage 来询问有关图像的问题（API 密钥需要为 gpt-4 付费）
3、调色板类别可以独立展开/折叠
4、MIT App Inventor 的主体现在通过 CloudFlare 内容交付网络加载。这应该可以更快地启动 MIT App Inventor。
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Call to undefined function curl_init().? [duplicate]
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If you're on Windows:
Go to your php.ini file and remove the ; mark from the beginning of the following line:
;extension=php_curl.dll
After you have saved the file you must restart your HTTP server software (e.g. Apache) before this can take effect.
Fo...
How do you reindex an array in PHP?
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This will do what you want:
<?php
$array = array(2 => 'a', 1 => 'b', 0 => 'c');
array_unshift($array, false); // Add to the start of the array
$array = array_values($array); // Re-number
// Remove the first index so we start at 1
$array = arra...
php static function
I have a question regarding static function in php.
6 Answers
6
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JavaScript isset() equivalent
In PHP you can do if(isset($array['foo'])) { ... } . In JavaScript you often use if(array.foo) { ... } to do the same, but this is not exactly the same statement. The condition will also evaluate to false if array.foo does exists but is false or 0 (and probably other values as well).
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Remove a string from the beginning of a string
... want, where you can limit your replace to part of your string:
http://nl3.php.net/manual/en/function.substr-replace.php (This will enable you to only look at the beginning of the string.)
You could use the count parameter of str_replace ( http://nl3.php.net/manual/en/function.str-replace.php ), th...
download file using an ajax request
...ownload. Instead, you could use a success function to navigate to download.php. This will open the download prompt but won't change the current page.
$.ajax({
url: 'download.php',
type: 'POST',
success: function() {
window.location = 'download.php';
}
});
Even though this ...
PHP variables in anonymous functions
I was playing around with anonymous functions in PHP and realized that they don't seem to reach variables outside of them.
Is there any way to get around this problem?
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File Upload without Form
..., can I just send a file/files from <input type="file"> to 'upload.php' using POST method using jQuery. The input tag is not inside any form tag. It stands individually. So I don't want to use jQuery plugins like 'ajaxForm' or 'ajaxSubmit'.
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Uppercase Booleans vs. Lowercase in PHP
When I was learning PHP, I read somewhere that you should always use the upper case versions of booleans, TRUE and FALSE , because the "normal" lowercase versions, true and false , weren't "safe" to use.
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