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How to fix “Headers already sent” error in PHP
...eader / header_remove
session_start / session_regenerate_id
setcookie / setrawcookie
Output can be:
Unintentional:
Whitespace before <?php or after ?>
The UTF-8 Byte Order Mark specifically
Previous error messages or notices
Intentional:
print, echo and other functions producing ...
angular.element vs document.getElementById or jQuery selector with spin (busy) control
...element argument in a directives compile or link function). They are never raw DOM references.
In case you do wonder why to use document.querySelector(), please read this answer.
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Virtual Serial Port for Linux
...pen a terminal (let's call it Terminal 0) and execute it:
socat -d -d pty,raw,echo=0 pty,raw,echo=0
The code above returns:
2013/11/01 13:47:27 socat[2506] N PTY is /dev/pts/2
2013/11/01 13:47:27 socat[2506] N PTY is /dev/pts/3
2013/11/01 13:47:27 socat[2506] N starting data transfer loop with F...
How to write PNG image to string with the PIL?
...ired to use BytesIO:
from io import BytesIO
from PIL import Image, ImageDraw
image = Image.new("RGB", (300, 50))
draw = ImageDraw.Draw(image)
draw.text((0, 0), "This text is drawn on image")
byte_io = BytesIO()
image.save(byte_io, 'PNG')
Read more: http://fadeit.dk/blog/post/python3-flask-pil...
Sanitizing strings to make them URL and filename safe?
...and see if all this works. If not then I'll probably have to drop back to (raw)?urlencode() to allow UTF-8. I'll post back results here.
– Xeoncross
Apr 24 '10 at 16:27
3
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How do I print out the contents of an object in Rails for easy debugging?
...t the PHP equivalent of print_r() (print human-readable); at present the raw output is:
8 Answers
...
Angular directives - when and how to use compile, controller, pre-link and post-link [closed]
...
How did you create this drawing ?
– Royi Namir
Nov 1 '15 at 12:01
6
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In Java, is there a way to write a string literal without having to escape quotes?
...
Update Dec. 2018 (12 months later):
Raw string literals (which are on the amber list) won't make it to JDK 12.
See the criticisms here.
There might be in a future version of Java (10 or more).
See JEPS 8196004 from January 2018: ("JEP" is the "JDK Enhancement ...
What is a smart pointer and when should I use one?
...ointer exception.
OLD ANSWER
A smart pointer is a class that wraps a 'raw' (or 'bare') C++ pointer, to manage the lifetime of the object being pointed to. There is no single smart pointer type, but all of them try to abstract a raw pointer in a practical way.
Smart pointers should be preferred...
jQuery : eq() vs get()
... which means that it accepts jQuery functions.
.get() returns an array of raw DOM elements. You may manipulate each of them by accessing its attributes and invoking its functions as you would on a raw DOM element. But it loses its identity as a jQuery-wrapped object, so a jQuery function like .fade...