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I am using the stripos function to check if a string is located inside another string, ignoring any cases.
Here is the problem:
stripos("ø", "Ø")
returns false. While
stripos("Ø", "Ø")
returns true.
As you might see, it looks like the function does NOT do a case-insensitive search in this case.
The function has the same problems with characters like Ææ and Åå. These are Danish characters.
268
strpos() Function: This function helps us to find the position of the first occurrence of a string in another string. This returns an integer value of the position of the first occurrence of the string. This function is case-sensitive, which means that it treats upper-case and lower-case characters differently.
The stripos() function finds the position of the first occurrence of a string inside another string. Note: The stripos() function is case-insensitive. Note: This function is binary-safe.
Note that strpos() is case sensitive, if you want a case-insensitive search, use stripos() instead. Also note the === , forcing a strict equality test. strpos CAN return a valid 0 if the 'needle' string is at the start of the 'haystack'.
Use mb_stripos() instead. It's character set aware and will handle multi-byte character sets. stripos() is a holdover from the good old days when there was only ASCII and all chars were only 1 byte.
54
You need mb_stripos.
39
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