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Getting HTTP code in PHP using curl
...ck to check server side. For example, doing this first could save a lot of time:
if(!$url || !is_string($url) || ! preg_match('/^http(s)?:\/\/[a-z0-9-]+(.[a-z0-9-]+)*(:[0-9]+)?(\/.*)?$/i', $url)){
return false;
}
Make sure you only fetch the headers, not the body content:
@curl_setopt($ch, C...
How can I open multiple files using “with open” in Python?
I want to change a couple of files at one time, iff I can write to all of them. I'm wondering if I somehow can combine the multiple open calls with the with statement:
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Can you have multiline HTML5 placeholder text in a ?
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No longer works in Chrome - for a long time now, I'd assume.
– Mike Rockétt
Feb 22 '17 at 14:08
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How to check if an email address exists without sending an email?
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There are two methods you can sometimes use to determine if a recipient actually exists:
You can connect to the server, and issue a VRFY command. Very few servers support this command, but it is intended for exactly this. If the server responds with a 2.0.0...
Smooth GPS data
...y second and displaying current position on a map. The problem is that sometimes (specially when accuracy is low) the values vary a lot, making the current position to "jump" between distant points in the map.
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How to get the text node of an element?
...ing two small numbers is better than comparing strings of various lengths (time and space considerations). The correct question to ask in this situation is "what kind / type of node do I have?", and not "what name do I have?" developer.mozilla.org/en-US/docs/Web/API/Node/nodeType
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Dynamic Sorting within SQL Stored Procedures
...ulating. I twitch and have to hold back urges to fix glaring mistakes any time I have to perform maintenance on any of them.
– Sean Hanley
Sep 29 '08 at 21:12
1
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Is it a bad practice to use break in a for loop? [closed]
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Yes.. For a time I didn't like the idea and coded around it, but it didn't take long before I realized the... "workaround" was often a maintenance nightmare. Well, not a nightmare, but more error-prone.
– MetalMike...
SQLite string contains other string query
...own test, instr(...) is a little bit faster (0.32s vs 0.34s). You can use .timer on in SQLite to measure the execution time.
– Arnie97
Sep 5 '19 at 7:58
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What does the @ symbol represent in objective-c?
...reely intermix with the C or C++ part.
Thus with very few exceptions, any time you see @ in some Objective-C code, you're looking at Objective-C constructs rather than C or C++ constructs.
The major exceptions are id, Class, nil, and Nil, which are generally treated as language keywords even thoug...