PHP code example of phpfn / pipe

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

phpfn / pipe example snippets

$snakeCase = strtolower(
    preg_replace('/(.)(?=[A-Z])/u', '$1_', 
        preg_replace('/\s+/u', '', 
            ucwords('HelloWorld')
        )
    )
);
             
var_dump($snakeCase); // "hello_world"

pipe('Hello World')
    ->ucwords(_)
    ->preg_replace('/\s+/u', '', _)
    ->preg_replace('/(.)(?=[A-Z])/u', '$1_', _)
    ->strtolower(_)
    ->var_dump;
//
// string(11) "hello_world"
//

$result = array_merge(
    $result,
    namespaced\func\get_file_arg(
        array_map(
            function ($x) use ($arg) {
                return $arg . '/' . $x;
            },
            array_filter(
                scandir($arg),
                function ($x) {
                    return $x !== '.' && $x !== '..';
                }
            )
        )
    )
);

$result = pipe($arg)
    ->scanDir($arg)
    ->array_filter(_, fn($x): bool => $x !== '.' && $x !== '..')
    ->array_map(fn($x): string => $arg . '/' . $x, _)
    ->use('namespaced\func')->get_file_arg
    ->array_merge($result, _);

pipe('hello')
    ->str_replace('o', '', _)
    ->var_dump; // "hell"

pipe('some')
    ->is_array
    ->var_dump; // bool(false) 

$context = pipe('hello')->strtoupper;

var_dump($context);
// object(Fun\Pipe\Pipe)#8 (1) { ... } 

var_dump($context());
// string(5) "HELLO"

namespace {
    function foo() { return __FUNCTION__; }
}

namespace Example {
    function foo() { return __FUNCTION__; }
}

$context = pipe()->use('Example')->foo;

echo $context(); // 'Example\\foo'

$context = $context->foo;

echo $context(); // 'foo'

pipe()
    ->use('Some\\Namespace')->foo // Call "\Some\Namespace\foo()"
    ->foo // Call "\foo()"
;

pipe()
    ->use('Some\\Namespace', fn($pipe) => 
        $pipe
            ->a // Call "\Some\Namespace\a()"
            ->b // Call "\Some\Namespace\b()"
    )
    ->a // Call "a()"
;