php string replace without using built in functionLearning Curve- Perfect Tutorial for the beginers | Learning Curve- Perfect Tutorial for the beginers

Replace an array value into other values using php

<?php
$val='http://mydoubts.in';
$myarray = array("0" => "http://mydoubts.in", "1" => "mytestvalue" );

print_r($myarray);echo "<br>";
$words_to_replace=$val;
$myarray=searchandreplace($myarray,$words_to_replace);
print_r($myarray);
function searchandreplace($myarray,$words_to_replace)
{
foreach($myarray as $key => $val)
{
   if ($val == $words_to_replace) $myarray[$key] = '';
}
return $myarray;
}
?>

<?php

$val='http://mydoubts.in';

$myarray = array("0" => "http://mydoubts.in", "1" => "mytestvalue" );

print_r($myarray);echo "<br>";

$words_to_replace=$val;

$myarray=searchandreplace($myarray,$words_to_replace);

print_r($myarray);

function searchandreplace($myarray,$words_to_replace)

{

foreach($myarray as $key => $val)

{

if ($val == $words_to_replace) $myarray[$key] = '';

}

return $myarray;

}