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What is for Python what 'explode' is for PHP?
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Choose one you need:
>>> s = "Rajasekar SP def"
>>> s.split(' ')
['Rajasekar', 'SP', '', 'def']
>>> s.split()
['Rajasekar', 'SP', 'def']
>>> s.partition(' ')
('Rajasekar', ' ', 'SP def')
str.split and str.pa...
How to append the output to a file?
How can I do something like command > file in a way that it appends to the file, instead of overwriting?
3 Answers
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How to remove duplicate values from an array in PHP
...unique($arr);
$dupes = array_diff_key( $arr, $unique );
// array( 5=>'duplicate', 6=>'three3' 7=>'three3' )
// count duplicates
array_count_values($dupes); // array( 'duplicate'=>1, 'three3'=>2 )
shar...
PHP - Get key name of array value
...nt to find the key, use array_search() like this:
$arr = array ('first' => 'a', 'second' => 'b', );
$key = array_search ('a', $arr);
$key will now contain the key for value 'a' (that is, 'first').
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In PHP, can you instantiate an object and call a method on the same line?
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Class member access on instantiation has been added, e.g. (new Foo)->bar().
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Removing all empty elements from a hash / YAML?
... Please note that compact and compact! come standard in Ruby => 2.4.0, and Rails => 4.1. They are non-recursive though.
– aidan
Nov 21 '17 at 5:21
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visual studio not remembering open documents & startup project
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In Visual studio 2015 :
Tools -> Import and Export Settings -> Reset all settings
It worked for me.
Happy coding :)
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ActiveRecord: List columns in table from console
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Using rails three you can just type the model name:
> User
gives:
User(id: integer, name: string, email: string, etc...)
In rails four, you need to establish a connection first:
irb(main):001:0> User
=> User (call 'User.connection' to establish a connection)
irb(mai...
What is a mutex?
A mutex is a programming concept that is frequently used to solve multi-threading problems. My question to the community:
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How to delete all the rows in a table using Eloquent?
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The reason MyModel::all()->delete() doesn't work is because all() actually fires off the query and returns a collection of Eloquent objects.
You can make use of the truncate method, this works for Laravel 4 and 5:
MyModel::truncate();
That drop...