PHP function to return the length of the longest string argument

Question

Eg:

GetLogestString("bae","afaaa","aaa") should return 5

GetLogestString("baeedfefe","afaaaa","aaa","bb") should return 9

cletus · Accepted Answer · 2010-02-22 08:46:06Z

15

function getLongestString() {
  $args = func_get_args();
  return max(array_map('strlen', $args));
}

Edit: In PHP 5.2 you have to store the result of func_get_args() in a temporary variable. In PHP 5.3 you can do this:

function getLongestString() {
  return max(array_map('strlen', func_get_args()));
}

answered Feb 22, 2010 at 8:25

cletus

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4 Comments

Only detail (which may or may not be wanted) is that if you call getLongestString("aaaaa","aa",99999999) it'll return 8, not 5.

Fatal error: func_get_args(): Can't be used as a function parameter

Srinivas Tamada: use a more recent PHP version. 5.3 has been out for quite a while now and has many improvements.

@Srinivas Tamada: Workaround: Store func_get_args() in a temporary variable and use this for the array_map.