array(4) {
[0]=>
string(4) "eins"
[1]=>
string(4) "zwei"
[2]=>
string(4) "drei"
[3]=>
string(4) "vier"
}
Index is at: eins
0: Currently at element eins
1: Currently at element zwei - unsetting. Now we have drei
2: Currently at element drei
3: Currently at element vier
array(3) {
[0]=>
string(4) "eins"
[2]=>
string(4) "drei"
[3]=>
string(4) "vier"
}
0: Currently at element eins
1: Currently at element drei
2: Currently at element vier