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PHP ORMs: Doctrine vs. Propel

I'm starting a new project with symfony which is readily integrated with Doctrine and Propel , but I of course need to make a choice.... I was wondering if more experienced people out there have general pros and/or cons for going with either of these two? ...
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input type=“submit” Vs button tag are they interchangeable?

input type="submit" and button tag are they interchangeable? or if there is any difference then When to use input type="submit" and when button ? ...
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Direct casting vs 'as' operator?

...s like yesterday when we were being all "edgy" trying to convince senior devs to make the switch to C#. – Griswald_911 Aug 13 '18 at 20:08 1 ...
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map vs. hash_map in C++

...I read this here https://bytes.com/topic/c/answers/570079-perfomance-clear-vs-swap saying that clear() is order of O(N). That to me, is very strange, but, that's the way it is. share | improve this...
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How to turn on WCF tracing?

... juFojuFo 14.5k88 gold badges8181 silver badges127127 bronze badges 2 ...
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Optimistic vs. Pessimistic locking

... You should mention that the choice depend also on the ratio read vs. write: if your application is mainly a read-only application by a lot of users, and sometimes you write data, than go for optimistic locking. StackOverflow, for example, have a lot of people reading pages, and sometimes ...
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Ruby: require vs require_relative - best practice to workaround running in both Ruby =1.

What is the best practice if I want to require a relative file in Ruby and I want it to work in both 1.8.x and >=1.9.2? ...
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Failed to install Python Cryptography package with PIP and setup.py

... complaints. – Christian Tismer Jan 27 '16 at 18:48 1 ...
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C# “as” cast vs classic cast [duplicate]

I recently learned about a different way to cast. Rather than using 10 Answers 10 ...
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Why is debugging better in an IDE? [closed]

... recursiverecursive 74.8k2727 gold badges131131 silver badges221221 bronze badges ...