w3resource

PHP: unserialize() function

Description

The unserialize() converts to actual data from serialized data.

Version:

(PHP 4 and above)

Syntax:

unserialize(string1)

Parameter:

Name Description Required /
Optional
Type
string1 The serialized string. Required String

Return value:

Converted value. The value can be a boolean, array, float, integer or string.

Value Type: Mixed*.

*Mixed : Mixed indicates that the return value may multiple (but not necessarily all) types.

Example:

<?php
$serialized_data = serialize(array('Math', 'Language', 'Science'));
echo  $serialized_data . '<br>';
// Unserialize the data
$var1 = unserialize($serialized_data);
// Show the unserialized data;
var_dump ($var1);
?>

Output :

a:3:{i:0;s:4:"Math";i:1;s:8:"Language";i:2;s:7:"Science";}
array(3) {    [0]=>    string(4) "Math"    [1]=>    string(8) "Language"    [2]=>    string(7) "Science"  } 

View the example in the browser

Practice here online :

See also

PHP Function Reference

Previous: strval
Next: unset



PHP: Tips of the Day

PHP - how to create a newline character?

Only double quoted strings interpret the escape sequences \r and \n as '0x0D' and '0x0A' respectively, so you want:

"\r\n"

Single quoted strings, on the other hand, only know the escape sequences \\ and \'.

So unless you concatenate the single quoted string with a line break generated elsewhere (e. g., using double quoted string "\r\n" or using chr function chr(0x0D).chr(0x0A)), the only other way to have a line break within a single quoted string is to literally type it with your editor:

$s = 'some text before the line break
some text after';

Make sure to check your editor for its line break settings if you require some specific character sequence (\r\n for example).

Ref : https://bit.ly/3hcyege