Online PHP editor | rfc for TQLmn

@ 2019-05-22T21:40:43Z

<?php

$test_strings = [
    '0<p>a</p>1<p>b</p>2<p>c</p>3',
    '0<p>a</p>1<p>b</p>2<p>c</p>',
    '<p>a</p>1<p>b</p>2<p>c</p>3',
    '<p>a</p>1<p>b</p>2<p>c</p>',
    '<p></p>1<p>b'
];

/**
 * Seperate a block of code by sub blocks. Example, removing all <script>...<script> tags from HTML kode
 * 
 * @param string $str, text block
 * @param string $startDelimiter, string to match for start of block to be extracted
 * @param string $endDelimiter, string to match for ending the block to be extracted
 * @return array [all full blocks, whats left of string]
 */
function getDelimitedStrings($str, $startDelimiter, $endDelimiter) {
    $contents = array();
    $startDelimiterLength = strlen($startDelimiter);
    $endDelimiterLength = strlen($endDelimiter);
    $startFrom = $contentStart = $contentEnd = $outStart = $outEnd = 0;
    while (false !== ($contentStart = strpos($str, $startDelimiter, $startFrom))) {
        $contentStart += $startDelimiterLength;
        $contentEnd = strpos($str, $endDelimiter, $contentStart);
        $outEnd = $contentStart - 1;
        if (false === $contentEnd) {
            break;
        }
        $contents['in'][] = substr($str, ($contentStart-$startDelimiterLength), ($contentEnd + ($startDelimiterLength*2) +1) - $contentStart);
        if( $outStart ){
            $contents['out'][] = substr($str, ($outStart+$startDelimiterLength+1), $outEnd - $outStart - ($startDelimiterLength*2));
        } else if( ($outEnd - $outStart - ($startDelimiterLength-1)) > 0 ){
            $contents['out'][] = substr($str, $outStart, $outEnd - $outStart - ($startDelimiterLength-1));
        }
        $startFrom = $contentEnd + $endDelimiterLength;
        $startFrom = $contentEnd;
        $outStart = $startFrom;
    }
    $total_length = strlen($str);
    $current_position = $outStart + $startDelimiterLength + 1;
    if( $current_position < $total_length )
        $contents['out'][] = substr($str, $current_position);

    return $contents;
}

foreach($test_strings AS $string){
    var_dump( getDelimitedStrings($string, '<p>', '</p>') );
}

Output for git.master, git.master_jit, rfc.property-hooks: array(2) { ["in"]=> array(3) { [0]=> string(8) "a" [1]=> string(8) "b" [2]=> string(8) "c" } ["out"]=> array(4) { [0]=> string(1) "0" [1]=> string(1) "1" [2]=> string(1) "2" [3]=> string(1) "3" } } array(2) { ["in"]=> array(3) { [0]=> string(8) "a" [1]=> string(8) "b" [2]=> string(8) "c" } ["out"]=> array(3) { [0]=> string(1) "0" [1]=> string(1) "1" [2]=> string(1) "2" } } array(2) { ["in"]=> array(3) { [0]=> string(8) "a" [1]=> string(8) "b" [2]=> string(8) "c" } ["out"]=> array(3) { [0]=> string(1) "1" [1]=> string(1) "2" [2]=> string(1) "3" } } array(2) { ["in"]=> array(3) { [0]=> string(8) "a" [1]=> string(8) "b" [2]=> string(8) "c" } ["out"]=> array(2) { [0]=> string(1) "1" [1]=> string(1) "2" } } array(2) { ["in"]=> array(1) { [0]=> string(7) "" } ["out"]=> array(1) { [0]=> string(5) "1b" } }

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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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