Answers for "define string php"

php obscure string

/**
 * @param string|string[] $plain
 * @param int             $revealStart
 * @param int             $revealEnd
 * @param string          $obscuration
 * @return string|string[]
 */
function obscure(
    $plain,
    int $revealStart = 1,
    int $revealEnd = 0,
    string $obscuration = '*'
) {
    if (is_array($plain)) {
        return array_map(
            function ($plainPart) use ($revealStart, $revealEnd, $obscuration) {
                return obscure($plainPart, $revealStart, $revealEnd, $obscuration);
            },
            $plain
        );
    }
    $plain = (string) $plain;
    return mb_substr($plain, 0, $revealStart)
        . str_repeat(
            $obscuration,
            max(
                0,
                mb_strlen($plain) -
                ($revealStart + $revealEnd)
            )
        )
        . mb_substr(
            $plain,
            -$revealEnd,
            $revealEnd
        );
}

string function in php

<?php
$x = 'kinjal';
echo "Length of string is: ".strlen($x);
echo "<br>Count of word: ".str_word_count($x);
echo "<br>Reverse the string: ".strrev($x);
echo "<br>Position of string: ".strpos('Have a nice day!','nice');  //2 argument
echo "<br>String replace: ".str_replace('good','nice','have a good day!');  //3 argument
echo "<br>String convert to uppercase: ".strtoupper($x);
echo "<br>String convert to lowercase: ".strtolower($x);
echo "<br>convert first character into uppercase: ".ucfirst('good day');
echo "<br>convert first character into lowercase: ".lcfirst('Good noon');
echo "<br>convert first character of each word into uppercase: ".ucwords('keep going on!');
echo "<br>Remove space from left side: ".ltrim("        hi..");
echo "<br>Remove space from right side: ".rtrim("hello          ");
echo "<br>Remove both side of space: ".trim("       keep learning       ");
echo "<br>string encrypted with MD5: ".md5($x);
echo "<br>Compare both string: ".strcoll('Hello','Hello')."<br>".strcmp('kinjal',$x);
echo "<br>Return part of string: ".substr('Hello Everyone',2);
?>