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PHP - Extracting a property from an array of objects

...he question because, array_column doesn't work with an array of objects at all. Since PHP 7.0.0 is is possible: stackoverflow.com/a/23335938/655224 – algorhythm May 23 '17 at 6:36 ...
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New self vs. new static

I am converting a PHP 5.3 library to work on PHP 5.2. The main thing standing in my way is the use of late static binding like return new static($options); , if I convert this to return new self($options) will I get the same results? ...
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Are global variables in PHP considered bad practice? If so, why?

In my small PHP projects I usually go the procedural way. I generally have a variable that contains the system configuration, and when I nead to access this variable in a function, I do global $var; . ...
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Are PHP functions case sensitive?

I was digging through some code, and I found some calls to mySQL_fetch_array . Is PHP case sensitive about function names? I recall reading this somewhere but can't seem to find any reference to it. ...
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Traits in PHP – any real world examples/best practices? [closed]

... My personal opinion is that there is actually very little application for traits when writing clean code. Instead of using traits to hack code into a class it is better to pass in the dependencies via the constructor or via setters: class ClassName { protected...
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Multiple inputs with same name through POST in php

... post and then access them from PHP? The idea is this: I have a form that allows the entry of an indefinite number of physical addresses along with other information. If I simply gave each of those fields the same name across several entries and submitted that data through post, would PHP be able ...
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How to get the file extension in PHP? [duplicate]

... 'Only variables should be passed by reference', the PHP Manual – dader Dec 20 '12 at 2:01 ...
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PHP abstract properties

...get_class($this) . ' must have a $tablename'); } } To enforce this for all derived classes of Foo_Abstract you would have to make Foo_Abstract's constructor final, preventing overriding. You could declare an abstract getter instead: abstract class Foo_Abstract { abstract public function get_...
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How to encrypt/decrypt data in php?

I'm currently a student and I'm studying PHP, I'm trying to make a simple encrypt/decrypt of data in PHP. I made some online research and some of them were quite confusing(at least for me). ...
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How to fix “Headers already sent” error in PHP

...ders must be invoked before any output is made. summary ⇊ Otherwise the call fails: Warning: Cannot modify header information - headers already sent (output started at script:line) Some functions modifying the HTTP header are: header / header_remove session_start / session_regenerate_id se...