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How are echo and print different in PHP? [duplicate]

... is just about at the bottom of the precedence list though. Only , AND OR XOR are lower. Parameter(s). The grammar is: echo expression [, expression[, expression] ... ] But echo ( expression, expression ) is not valid. This would be valid: echo ("howdy"),("partner"); the same as: echo "howdy","...
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Possible to do a MySQL foreign key to one of two possible tables?

...oach with "CONSTRAINT CHECK". But it can be improved if we change "OR" to "XOR". That way we insure that only one column from set is NOT NULL – alex_b Aug 19 '15 at 14:18 1 ...
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How to get elements with multiple classes

...ast one class) var list = document.querySelectorAll(".class1,.class2"); XOR (one class but not the other) var list = document.querySelectorAll(".class1:not(.class2),.class2:not(.class1)"); NAND (not both classes) var list = document.querySelectorAll(":not(.class1),:not(.class2)"); NOR (not ...
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How to get memory available or used in C#

... One note. In C# ^ is bitwise XOR, not power. So just use proc.PrivateMemorySize64 / (1024*1024), or proc.PrivateMemorySize64 / (1 << 20) – Сергей Рыбаков May 18 at 6:15 ...
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Renaming the current file in Vim

...ngthy in any project. Is there a solution to this? – xor Sep 16 '15 at 13:06 1 That's great! I ke...
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String comparison in Python: is vs. == [duplicate]

...If you have bool_a == 3 and bool_b == 4, then bool_a != bool_b, but bool_a xor bool_b is false (because both terms are true). – dan04 Jun 7 '10 at 12:57 3 ...
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C# int to byte[]

... The array initializer and the xor (^) and & 0xFF bits are unnecessary. – dtb Aug 23 '09 at 16:42 6 ...
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How can I get the executing assembly version?

...osoft.com/en-us/library/system.reflection.assembly.getentryassembly%28v=vs.110%29.aspx: The GetEntryAssembly method can return null when a managed assembly has been loaded from an unmanaged application. For example, if an unmanaged application creates an instance of a COM component written in C#, a...
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Is there a better way of writing v = (v == 0 ? 1 : 0); [closed]

...in different languages (VB). Yes a quick look-up will tell you that its an XOR operator and you will understand what its doing, but to many it may not be obvious at first glance. I don't think that means you need to quit your job. – JD Isaacks Aug 2 '11 at 15:4...
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filename and line number of python script

..., '__rpow__', '__rrshift__', '__rshift__', '__rsub__', '__rtruediv__', '__rxor__', '__setattr__', '__sizeof__', '__str__', '__sub__', '__subclasshook__', '__truediv__', '__trunc__', '__xor__', 'bit_length', 'conjugate', 'denominator', 'imag', 'numerator', 'real'] 14 ...