php find string count code example

Example 1: 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

Example 2: php count string in array

<?php
$a[0] = 1;
$a[1] = 3;
$a[2] = 5;
var_dump(count($a));

$b[0]  = 7;
$b[5]  = 9;
$b[10] = 11;
var_dump(count($b));

var_dump(count(null));

var_dump(count(false));
?>
  /* result
  
  
int(3)
int(3)

Warning: count(): Parameter must be an array or an object that implements Countable in … on line 12 // as of PHP 7.2
int(0)

Warning: count(): Parameter must be an array or an object that implements Countable in … on line 14 // as of PHP 7.2
int(1)

*/