String question

I have a string and i would like to know if the first 7 letters are http://, how i can do that ? without string[0]='h' ,string[t] ?!

is there anything like string[0 to 6] ,etc?! for when i want to remove something from a string,etc?!

 

If you want to use the first X letters take a look at substr()
If this is to find out what the scheme of a URL is take a look at parse_url() with the PHP_URL_SCHEME flag

 

$parsed_string=substr($original_string, 0, 6);
if (stristr($parsed_string, "http://"))
{
echo "yes, it contains http://";
}

 

I was also thinking to sub the sub string but it won't return an error if the string will be empty , or will have less characters then the number of characters i a searching for?!

 

use the empty() function to check if the string is empty?

 

Use substr function to get first few characters you can use it like this

substr($str,0,7)

PHP:

 

what wil happen if it https?

 

Why even think about https. OP wants http.

With substr, the string is not removed but part of the string is assigned to a new variable.

 

I still think that parse_url would be ideal for this

if(parse_url($url, PHP_URL_SCHEME) == 'http') {
    //Code here
}

PHP:

 

Easy to solve even with basic PHP skills...

 

Well that is just redundant to double check with stristr().

if ( 'http://' == substr( strtolower( $url ), 0, 7 ) )
{
    // starts with `http://`
}

PHP:

Or use stripos():

if ( 0 === stripos( $url, 'http://' ) )
{
    // starts with `http://`
}

PHP: