Php-mysql Course

This tutorial shows how to get each character separately from a number, in PHP.
The main thing is to convert the number into a string (with (string) ), then you can get each character using its index.
- Example:
<?php
$nr = 15674789;
$nr_str = (string) $nr;    // convert $nr into a string

echo $nr_str[0];              // 1
echo '<br/>'. $nr_str[2];     // 6      

$nr_ln = strlen($nr);     // gets the number of characters in $nr

// output the number of characters in $nr, and the last character
echo '<br/>'. $nr_ln;                   // 8
echo '<br/>'. $nr_str[$nr_ln - 1];      // 9
?>

• If you want to hold each number separately into an array, use: str_split($number, 1).
- Example:
<?php
$nr = 15674789;
$nr_arr = str_split($nr, 1);

echo $nr_arr[0];              // 1
echo '<br/>'. $nr_arr[2]. '<br/>';     // 6

// output the entire array
var_export($nr_arr);
  // array ( 0 => '1', 1 => '5', 2 => '6', 3 => '7', 4 => '4', 5 => '7', 6 => '8', 7 => '9', )
?>

Daily Test with Code Example

HTML
CSS
JavaScript
PHP-MySQL
What attribute makes an option from <select> selected?
checked="checked" selected="selected" disabled="disabled"
<select name="a_name">
 <option value="val1">Option 1</option>
 <option value="val2" selected="selected">Option 2</option>
</select>
What CSS value allows to create color gradients for background?
contain repeat-x linear-gradient
#id {
  background: linear-gradient(top left, #1f1, #fff, #11f);
}
What statement creates an array in JavaScript?
[] {} new Object()
var arr = [1, "CoursesWeb.net", "MarPlo.net"];
alert(arr[2]);
Indicate the PHP function used to redirect to other page.
function() header() switch()
header("Location: http://coursesweb.net/");
exit;
Split number - Get each character from number

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