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How to fix “Headers already sent” error in PHP
...k for premature output.
Typical causes:
Print, echo
Intentional output from print and echo statements will terminate
the opportunity to send HTTP headers. The application flow must
be restructured to avoid that. Use functions
and templating schemes. Ensure header() calls occur before messages
ar...
(SC) DeleteService FAILED 1072
...ocation in regedit:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
From here, you will see a folder for every service on your machine. Simply delete the folder for the service you wish, and you're done.
N.B: Stop the service before you try this.
...
Convert PHP closing tag into comment
...
Use a trick: concatenate the string from two pieces. This way, the closing tag is cut in two, and is not a valid closing tag anymore. '?>' --> '?'.'>'
In your code:
$string = preg_replace('#<br\s*/?'.'>(?:\s*<br\s*/?'.'>)+#i', '<br /&g...
Java heap terminology: young, old and permanent generations?
...arbage collection
are the following.
Eden Space (heap): The pool from which memory is initially allocated
for most objects.
Survivor Space (heap): The pool containing objects that have survived
the garbage collection of the Eden
space.
Tenured Generation (heap): The pool containi...
Why do access tokens expire?
...n will return a fresh bearer token. Likewise, if I steal somebody's token from their cookies, and spoof my own cookie with that token, I send it to the server, it will refresh and send me a new one. What's to stop that? Don't say IP Address or even MAC, because that's unreasonable.
...
What is the difference between re.search and re.match?
... if the string does not
match the pattern; note that this is
different from a zero-length match.
Note: If you want to locate a match
anywhere in string, use search()
instead.
re.search searches the entire string, as the documentation says:
Scan through string looking for a
locat...
What's the use of ob_start() in php?
...o I can break out of PHP with a lot of HTML but not render it. It saves me from storing it as a string which disables IDE color-coding.
<?php
ob_start();
?>
<div>
<span>text</span>
<a href="#">link</a>
</div>
<?php
$content = ob_get_clean();
?>...
'python' is not recognized as an internal or external command [duplicate]
... to your Windows Path:
https://docs.python.org/2/using/windows.html Taken from this question.
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Disable mouse scroll wheel zoom on embedded Google Maps
...iframe height */
}
The div will cover the map, preventing pointer events from getting to it. But if you click on the div, it becomes transparent to pointer events, activating the map again!
I hope get helped you :)
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how to compare two elements in jquery [duplicate]
... == $b[0] // not always true
maybe class added to the element or removed from it after the first assignment
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