Suppose I have a string:
$str="1,3,6,4,0,5";
Now user inputs 3.
I want that to remove 3 from the above string such that above string should become:
$str_mod="1,6,4,0,5";
Is there any function to do the above?
3 Answers
You can split it up, remove the one you want then whack it back together:
$str = "1,3,6,4,0,5";
$userInput = 3;
$bits = explode(',', $str);
$result = array_diff($bits, array($userInput));
echo implode(',', $result); // 1,6,4,0,5
Bonus: Make $userInput an array at the definition to take multiple values out.
1 Comment
Anthony
That's actually pretty clever. +1
2 Comments
scrowler
Regex is not needed in this situation
animaacija
wrong its less lines, solves commo or no comma problem solves removing a whole 3 not a 3 from 33 . And exploding parsing then intersecting arrays must be more resource waste
If you don't want to do string manipulations, you can split the string into multiple pieces, remove the ones you don't need, and join the components back:
$numberToDelete = 3;
$arr = explode(',',$string);
while(($idx = array_search($numberToDelete, $components)) !== false) {
unset($components[$idx]);
}
$string = implode(',', $components);
The above code will remove all occurrences of 3, if you want only the first one yo be removed you can replace the while by an if.
str_replace()? Thats a good start. Alsopreg_replace()explode,unset,implode,str_replace()etc. Read about them and use as per your requirement.