Online PHP editor | rfc for 0CS8m

@ 2021-10-05T17:08:25Z

<?php

$test = [
    'a',
    'b',
    'a',
    'b',
    'a',
    'a',
    'a'
];
$result = [];

// The first two need to be setup manually. There should probably be a guard around this
// with a length check for $test.
$result[] = array_shift($test);
$result[] = array_shift($test);

// Inside the loop we'll keep removing items
while(count($test)){
    
    // Setup common variables
    $current = array_shift($test);
    $last = end($result);
    $last_char = $last[-1];
    
    if(strlen($last) >= 2){
        // If we have two (or more) characters at the end of the array, just append
        $result[] = $current;
    }elseif($current === $last_char){
        // Also, if we have the same character as last time, just append
        $result[] = $current;
    }else{
        // Otherwise we have a different character, so append the current to the previus
        $result[ count($result) - 1 ] = $last_char . $current;
    }
}

var_dump($result);

Output for rfc.property-hooks, git.master, git.master_jit: array(5) { [0]=> string(1) "a" [1]=> string(2) "ba" [2]=> string(2) "ba" [3]=> string(1) "a" [4]=> string(1) "a" }

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2022-12-01 RFC: Property hooks - included in PHP 8.4
2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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