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jquery IDs with spaces
...or this is simple, space character is not a valid for ID attribute.
ID tokens must begin with a letter
([A-Za-z]) and may be followed by any
number of letters, digits ([0-9]),
hyphens ("-"), underscores ("_"),
colons (":"), and periods (".").
But if you don't care about standards try $...
How can I remove duplicate rows?
...erver LEFT JOIN is less efficient than NOT EXISTS sqlinthewild.co.za/index.php/2010/03/23/… The same site also compares NOT IN vs NOT EXISTS. sqlinthewild.co.za/index.php/2010/02/18/not-exists-vs-not-in Out of the 3 I think NOT EXISTS performs best. All three will generate a plan with a self join ...
string sanitizer for filename
I'm looking for a php function that will sanitize a string and make it ready to use for a filename. Anyone know of a handy one?
...
How do I calculate tables size in Oracle
...
You might be interested in this query. It tells you how much space is allocated for each table taking into account the indexes and any LOBs on the table. Often you are interested to know "How much spaces the the Purchase Order table take, including any indexes" rather than just the table itsel...
Explode string by one or more spaces or tabs
...
instead of using explode, try preg_split: http://www.php.net/manual/en/function.preg-split.php
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Supabase扩展能实现实时推送吗？源码级Realtime能力分析 - App应用开发 - ...
.../realtime/v1/websocket
2. 连接时携带apikey和可选的 Authorization token
3. 连接建立后进入 Phoenix Channels 交互
Phoenix Channels 消息格式
所有消息都是 JSON，包含以下字段：
- topic：频道名称（如 "realtime:public"）
- event：事件类型（...
Resetting a setTimeout
...imer = window.setTimeout(function() {
window.location.href = 'file.php';
}, 115000);
}
function onClick() {
clearTimeout(g_timer);
startTimer();
}
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Android Center text on canvas
...Bounds(Rect) instead. (Do not use Canvas.getClipBounds().getHeight() as it allocates memory for a Rect.)
For reasons of performance, you should allocate objects before they are used in onDraw(). As drawCenter() will be called within onDraw() the object Rect r is preallocated as a field here.
I ...
What is SQL injection? [duplicate]
...ta or even changing data that they shouldn't be allowed to do.
Example in PHP:
$password = $_POST['password'];
$id = $_POST['id'];
$sql = "UPDATE Accounts SET PASSWORD = '$password' WHERE account_id = $id";
Now suppose the attacker sets the POST request parameters to "password=xyzzy" and "id=acc...
Str_replace for multiple items
...s:
str_replace(array(':', '\\', '/', '*'), ' ', $string);
Or, in modern PHP (anything from 5.4 onwards), the slighty less wordy:
str_replace([':', '\\', '/', '*'], ' ', $string);
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