String to Array and Back : PHP

Question

In PHP

I have a string, how do I convert it to an array?

After manipulating that array, how do I again make it into a string?

Do strings in PHP behave the same way as in Java?

is there a dupe for this?

thanks in advance

Answer 1

explode ( string $delimiter , string $string [, int $limit ] )

... and after changes ...

implode ( string $glue , array $pieces )

check out http://www.php.net/explode
and http://www.php.net/implode

You can also use split or join which, as far as I know, support regex

Answer 2

In PHP you can split and join. Don´t know how Java behaves.

Answer 3

in php you can use:

split like

Description

array split ( string $pattern , string $string [, int $limit ] )

Splits a string into array by regular expression.

or

implode

<?php

$array = array('lastname', 'email', 'phone');
$comma_separated = implode(",", $array);

echo $comma_separated; // lastname,email,phone

?>

Answer 4

as in C, strings are arrays in php

then

<?php
$a = "hola";

foreach($i=0; $i < strlen($a); $i++) {
 echo $a[$i] . "\n";

}

$a[2] = "-"; // will print ho-a
?>

what operation do you want to do?

Answer 5

In Java, you can do:

String.tocharArray() which converts the string into an array of characters. You can do a String.split(regex) to split by a regular expression, returning a String array. A char array or String array can be looped on easily to convert back to a string.

I'm not sure what you mean by "do they behave the same". Essentially they provide the same functionality... however in Java a String is an object that can be iterated upon if need be.

Answer 6

In PHP Strings can be accessed like arrays.

e.g. $my_string = 'abcdef';

$my_string[0] ==> 'a' $my_string[1] ==> 'b'

If you want to convert a series of words into an array then use explode(' ',$my_string);

Note: Strings in PHP are not the same as Java. In PHP they can also represent the contents of any file.

You can learn almost anything there is to know by checking the documentation :)

Regards,