Answers for "point on letter number in string php"

php get number from string

function get_numerics ($str) {
    preg_match_all('/\d+/', $str, $matches);
    return $matches[0];
}

// this function will return an array of number

$str = "3 dogs were running!";
echo (get_numerics($str)[0]); 

// output 3

get number of chars ina string php

$name = "Perú"; // With accent mark
echo strlen($name); // Display 5, because "ú" require 2 bytes.

$name = "Peru"; // Without accent mark
echo strlen($name); // Display 4