PHP turns an array into a string implode and explode

If it is simply merging, it is simple:
$new = Implode (', ', Array (' A ', ' B ', ' C ', ' d ', ' e ', ' f ', ' G ')); 

However, if you consider the recovery of the group, so be sure to use the separator to do it, or you can not get out ah ...

the merged and removed code is as follows:

<?php
//The array is synthesized into a variable, with a | character-lattice;
$new =implode ("|", Array (a,b,c,d,e,f,g));

echo "Variable value is:";
echo $new;
echo "<br>\n";

Split the variable into an array
$b =explode (' | ', $new);
The value of the foreach ($b as $key => $value) {
echo array $key = $value <br>\n ";}
? > 

serialize and Unserialize can also be merged and disassembled, but the data is a bit longer.