Description:
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basename() returns a false result if the paramater begins with a non-ASCII character:


Confirmed on PHP 5.5.15 and 5.4.30.

The bug does not occur if the non-ASCII character is not first.

Reported previously on EOL-ed PHP version: https://bugs.php.net/bug.php?id=62119 - no resolution yet exists.

Test script:
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Shell script to demonstrate problem:

# echo -n "uploads/й.png" > filename.txt

# LANG=C php -r 'echo basename(file_get_contents("filename.txt"))."\n";'
.png

# LANG=en_US.UTF-8 php -r 'echo basename(file_get_contents("filename.txt"))."\n";'
й.png

Shell script to demonstrate non-existence of problem if the non-ASCII character is not first:

# echo -n "uploads/xй.png" > filename.txt
# LANG=C php -r 'echo basename(file_get_contents("filename.txt"))."\n";'
xй.png