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Bug #2563 strpos returns the same result for "not found" and "found at 1st character"
Submitted: 1999-10-18 18:16 UTC Modified: 1999-10-31 10:34 UTC
From: sascha dot mantscheff at t-online dot de Assigned:
Status: Closed Package: Misbehaving function
PHP Version: 3.0.11 OS: Suse Linux
Private report: No CVE-ID: None
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 [1999-10-18 18:16 UTC] sascha dot mantscheff at t-online dot de 
There seems to be no way to programatically differentiate between the meaning "substring not found" and "found at the 1st place in the substring". 

Consider the statements:

if (strpos( "abc", "a" ) == false)
  echo "false;

and

if (strpos( "abc", "a" ) == 0)
  echo "false";

They both print "false", though "a" is a substring of "abc".

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 [1999-10-31 10:34 UTC] rasmus at cvs dot php dot net 
It's not ideal, but strpos() returns 0 when the char is found in the first position and an empty string when it isn't
found at all.  strlen(strpos()) would give you a proper true/false, for example.
 
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