3v4l.org

run code in 300+ PHP versions simultaneously

@ 2021-12-25T11:52:10Z

<?php

function sov_find_key($findvalue, $array, $increment) {
    reset($array);
    $key = array_search($findvalue, $array);
    
    if ($key === false || $key === 0){
        return false;
    }
    
    if ($increment === 0){
        return $key;
    }
    
    $isNegative = $increment < 0 ? true:false;
    $increment = abs($increment);
    
    while(key($array) !== $key) {
        next($array);
    }
    
    $x=0;
    while($x < $increment) {
        if( $isNegative ){
            prev($array);
        } else {
            next($array);
        }
        $x++;
    }
    
    return key($array);
}

$findvalue = '3';

$array = array( 'A' => 'CONTRACTS',
			'B' => '1',
			'C' => '2',
			'D' => '3',
			'E' => '4',
			'F' => '5',
			'G' => '6');


echo sov_find_key($findvalue, $array, -1);

Output for 7.3.13 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.4, 8.3.6 - 8.3.25, 8.4.1 - 8.4.12: C
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 C

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41.05 ms | 407 KiB | 5 Q