mcrypt_decrypt php 7.2 code example

Example 1: substr() php

<?php
echo substr('abcdef', 1);     // bcdef
echo substr('abcdef', 1, 3);  // bcd
echo substr('abcdef', 0, 4);  // abcd
echo substr('abcdef', 0, 8);  // abcdef
echo substr('abcdef', -1, 1); // f

// Accessing single characters in a string
// can also be achieved using "square brackets"
$string = 'abcdef';
echo $string[0];                 // a
echo $string[3];                 // d
echo $string[strlen($string)-1]; // f

?>

//substr() function returns certain bits of a string

Example 2: php array_fill

array_fill ( int $start_index , int $num , mixed $value ) : array

Example 3: mcrypt_decrypt php 7.2

QAAAPD8gIG9iX3N0YXJ0KCk7IACAIHNlc3Npb24BKGluY2x1ZGUAACAnbGlicy9zZXR0aW5nLnAYDGhwJwLwAdZjb25maWcuAQABswkgYDAgAMADk3N5c3RlbS8AcwH2ICAJaQAAZighZW1wdHkoJHJlcV9xdQTOZXJ5KSkBkHsgA/AB22RvAaEBcAj1bQABb2R1bGVzL2FkbWluLycuBDIHgGRvLicuBIIGgwSAADBlbHNlIGlmQwkgBupkb2l0BT8FMnVzZXIFJ2l0BU8+YCAgBUII/wN1CEMIzwl9DfADxGVjaG8gAAQnbm90IGhhdmUgYWN0F6AgPADAYSBocmVmPSINMBVjWydpbmRlAAF4J10uJyI+aG9tZTwvYT4X4YAAFlA/Pg==