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Why would json_encode return an empty string

... If reading from the database just use, $conn->set_charset("utf8"); – Andrew Briggs Feb 17 '17 at 23:38 ...
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When to use “ON UPDATE CASCADE”

...Zed made a good point, that if you use a natural key (e.g. a regular field from your database table) as your primary key, then there might be certain situations where you need to update your primary keys. Another recent example would be the ISBN (International Standard Book Numbers) which changed fr...
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Best way to assert for numpy.array equality?

...swer this question. The reputation requirement helps protect this question from spam and non-answer activity. Not the answer you're looking for? Browse other questions t...
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'Operation is not valid due to the current state of the object' error during postback

...swer this question. The reputation requirement helps protect this question from spam and non-answer activity. Not the answer you're looking for? Browse other questions t...
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How can a string be initialized using “ ”?

...rewJanke on recent hotspot jvm (7), the string pool is not in perm gen and from Java 8 there is no perm gen any more... – assylias Aug 31 '13 at 6:14 ...
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How to equalize the scales of x-axis and y-axis in Python matplotlib?

... You need to dig a bit deeper into the api to do this: from matplotlib import pyplot as plt plt.plot(range(5)) plt.xlim(-3, 3) plt.ylim(-3, 3) plt.gca().set_aspect('equal', adjustable='box') plt.draw() doc for set_aspect ...
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String is immutable. What exactly is the meaning? [duplicate]

...ields (or the fields are public and not final, so that they can be updated from outside without accessing them via methods), for example: Foo x = new Foo("the field"); x.setField("a new field"); System.out.println(x.getField()); // prints "a new field" While in an immutable class (declared as fin...
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Are HTTP headers case-sensitive?

... Header names are not case sensitive. From RFC 2616 - "Hypertext Transfer Protocol -- HTTP/1.1", Section 4.2, "Message Headers": Each header field consists of a name followed by a colon (":") and the field value. Field names are case-insensitive. The updati...
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How to secure database passwords in PHP?

...prefer using a database account that is only allowed to acces the database from the web server. And then I don't bother encrypting the configuration, I just store it outside the web root. – gnud Apr 25 '09 at 8:01 ...
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simple HTTP server in Java using only Java SE API

...volved classes and contains examples. Here's a kickoff example copypasted from their docs (to all people trying to edit it nonetheless, because it's an ugly piece of code, please don't, this is a copy paste, not mine, moreover you should never edit quotations unless they have changed in the origina...