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json_encode is returning NULL?
...e at least PHP 5.5, you can use json_last_error_msg(), which will return a string describing the problem.
If you don't have 5.5, but are on/above 5.3, you can use json_last_error() to see what the problem is.
It will return an integer, that you can use to identify the problem in the function's doc...
std::string to float or double
I'm trying to convert std::string to float/double .
I tried:
15 Answers
15
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PHP: How to remove all non printable characters in a string?
...ASCII chars, you can rip out everything from 0-31 and 127-255 with this:
$string = preg_replace('/[\x00-\x1F\x7F-\xFF]/', '', $string);
It matches anything in range 0-31, 127-255 and removes it.
8 bit extended ASCII?
You fell into a Hot Tub Time Machine, and you're back in the eighties.
If yo...
How to read a (static) file from inside a Python package?
...emp_file')) # Do not use os.path.join()
template = pkg_resources.resource_string(resource_package, resource_path)
# or for a file-like stream:
template = pkg_resources.resource_stream(resource_package, resource_path)
Tips:
This will read data even if your distribution is zipped, so you may set ...
Sort a single String in Java
Is there a native way to sort a String by its contents in java? E.g.
10 Answers
10
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How do you make a HTTP request with C++?
...t contains a 1 or a 0. Is it also possible to download the contents into a string?
22 Answers
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What is a reasonable length limit on person “Name” fields?
..., and take their names with them.
For example, Spanish people with those extra surnames can move to and live in an English-speaking country, and can reasonably expect their full name to be used. Russians have patronymics in addition to their surnames, some African names can be considerably longer ...
Best way to serialize an NSData into a hexadeximal string
...king for a nice-cocoa way to serialize an NSData object into a hexadecimal string. The idea is to serialize the deviceToken used for notification before sending it to my server.
...
Extracting substrings in Go
... from the console (including whitespace), then process it. Using bufio.ReadString, the newline character is read together with the input, so I came up with the following code to trim the newline character:
...
How to check if a char is equal to an empty space?
...e, so it can be compared with ==.
Also, by using double quotes you create String constant (" "), while with single quotes it's a char constant (' ').
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