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How to find out where a function is defined?

... You could also do this in PHP itself: $reflFunc = new ReflectionFunction('function_name'); print $reflFunc->getFileName() . ':' . $reflFunc->getStartLine(); share ...
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Finding the PHP File (at run time) where a Class was Defined

Is there any reflection/introspection/magic in PHP that will let you find the PHP file where a particular class (or function) was defined? ...
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How do I get the function name inside a function in PHP?

... FUNCTION works for non-class functions as well. Tried on PHP 7.0.8. – mvsagar Jul 21 '17 at 13:58 Th...
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The first day of the current month in php using date_modify as DateTime object

... Requires PHP 5.3 to work ("first day of" is introduced in PHP 5.3). Otherwise the example above is the only way to do it: <?php // First day of this month $d = new DateTime('first day of this month'); echo $d->forma...
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PHP prepend associative array with literal keys?

... See also array_merge() and its difference from using the + operator: br.php.net/manual/en/function.array-merge.php#92602 – Havenard Sep 3 '09 at 1:33 2 ...
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Multiple returns from a function

... If only PHP had Perl's wantarray() – Marc B Aug 26 '10 at 22:22 8 ...
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Calling closure assigned to object property directly

... As of PHP7, you can do $obj = new StdClass; $obj->fn = function($arg) { return "Hello $arg"; }; echo ($obj->fn)('World'); or use Closure::call(), though that doesn't work on a StdClass. Before PHP7, you'd have to implem...
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How to add elements to an empty array in PHP?

If I define an array in PHP such as (I don't define its size): 8 Answers 8 ...
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Remove first 4 characters of a string with PHP

How can I remove the first 4 characters of a string using PHP? 7 Answers 7 ...
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C# short/long/int literal format?

...by F or f is of type float. For example, the literals 1f, 1.5f, 1e10f, and 123.456F are all of type float. A real literal suffixed by D or d is of type double. For example, the literals 1d, 1.5d, 1e10d, and 123.456D are all of type double. A real literal suffixed by M or m is of type decimal. For ex...