I have a string like this:
S="str1|str2|str3"
I want extract another string from S which will contains only
t="str1|str2"
where | is the delimiter
thanks
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6 Answers
$string = "str1|str2|str3";
$pieces = explode( '|', $string); // Explode on '|'
array_pop( $pieces); // Pop off the last element
$t = implode( '|', $pieces); // Join the string back together with '|'
Alternatively, use string manipulation:
$string = "str1|str2|str3";
echo substr( $string, 0, strrpos( $string, '|'));
implode("|", array_slice(explode("|", $s), 0, 2));
Not a very flexible solution, but works for your test case.
Alternatively, you can utilise explode()'s third param limit, like so:
implode("|", explode("|", $s, -1));
Comments
$s = 'str1|str2|str3';
$t = implode('|', explode('|', $s, -1));
echo $t; // outputs 'str1|str2'
Comments
So, get the same string without the last element?
This works:
print_r(implode('|', explode('|', 'str1|str2|str3', -1)));
Using explode with a negative limit so it returns all the string without the last element, and then imploding the elements again.
Comments
This example should set you on the right path
$str = "str1|str2|str3";
$pcs = explode("|", $str);
echo implode( array_slice($pcs, 0, 2), "|" );
Comments
I would take a look at the strpos function and at the substr function.
That is the way I would go about doing it.
