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<?php # It is NOT OK to start reading past the end of the string, no, no. Bad programmer. var_dump(substr("a", 1)); # But it is OK to ask for a bigger slice than the length of the string. var_dump(substr("a", 0, 10)); # It is also OK to read past the begining of the string, why not. var_dump(substr("a", -1)); var_dump(substr("a", -2)); # On the other hand, it is NOT OK to stop reading before the end of the string. Bad programmer. var_dump(substr("a", 0, -2));
Output for git.master, git.master_jit, rfc.property-hooks
string(0) "" string(1) "a" string(1) "a" string(1) "a" string(0) ""

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