array key problem

[aruncourage]

<?php

class Strmatch

{

public $a,$b,$c;

 

function str($a,$b,$c)

{

 

  $this->position($a,$c);

}

function position($tv,$ts)

{

$fvalue=substr($tv,0,1);

$leng=strlen($ts);

 

for($i=0;$i<$leng;$i++)

{

    if($ts[$i]==$fvalue)

{

$count[$i]=$ts[$i];

}

}

$key=($count);

$keyvalue=(array_keys($key));

$count=count($keyvalue);

$lengtv=strlen($tv);

for($i=0;$i<$count;$i++)

{

    $str[$i]=substr($ts,$keyvalue[$i],$lengtv);

                            $a1=$str;

    $a2[]=$tv;

  if(array_intersect($a1,$a2))

                              {

                                      $key=$keyvalue;

                                      echo $key;

                              }

}

 

}

}

$test=new Strmatch();

$test->str('check','test','The check is completed');

?>

 

I wants fetch the appropriate key or matching key value in that function...how is done ? Please help me I trying to solve this problem from last 30hous ............Please help me........Thank you

[andrewgauger]

I hardly see any logic in this, so I hope you can clarify this:

 

you execute the function str() passing three variables, the first of which you are attempting to match against the third?  It looks like you are trying to see if the first argument is in the third?  if this is what you want, then just execute

echo strstr($c,$a);

inplace of position()

 

If you want to find out what position it occurs at subsitute

echo strpos($c,$a);

 

either way, review:

http://www.php.net/manual/en/ref.strings.php

[aruncourage]

I would like to create the custom str_replace () function in php.so I have pass the 3 arguments ('replace'"targetvalue",'targetstring')...I think that I fall the logic . Please help me.......

[andrewgauger]

I can hardly see a reason to rewrite the function. http://php.net/manual/en/function.str-replace.php  this one executes at a lower level than php does, so there is no way to optimize it without rewriting it in C.  Can you explain one benefit of rewriting it (or are you doing this for educational reasons?)  I don't mean to come off as condescending, I just don't understand why rewrite such a well written function.

[aruncourage]

It's for education purpose ..........

i wants another help from you.

 

i wants set the Password length in my register page .. how is  made in php ?

please help me. Thank you

[andrewgauger]

validating password length should be as easy as:

$pass=$_POST['password'];
if (strlen($pass) < 4){
echo "Password too short!";
}

 

And I had an idea about rewriting str_replace:

 

function str_replace_slow($haystack, $needle, $replace){
$array_temp=explode($needle, $haystack);
return implode($replace, $array_temp);
}