json_encode() test
FALSE
Use mb_check_encoding to check if txt1 is a valid UTF-8 string
txt1 contains invalid UTF-8 characters.
Use mb_check_encoding to check if txt2 is a valid UTF-8 string
txt2 contains invalid UTF-8 characters.
Invalid UTF-8 bytes found in 'test0': 0xFF
Invalid UTF-8 bytes found in 'txt1': 0xE3, 0x81, 0x93, 0xE3, 0x81, 0x93, 0xE3, 0x81, 0xAB, 0xE5, 0x85, 0xA5, 0xE5, 0x8A, 0x9B, 0xE3, 0x81, 0x97, 0xE3, 0x81, 0x9F, 0xE3, 0x82, 0xBD, 0xE3, 0x83, 0xBC, 0xE3, 0x82, 0xB9, 0xE3, 0x82, 0x92, 0xE9, 0x9B, 0xA3, 0xE8, 0xAA, 0xAD, 0xE5, 0x8C, 0x96, 0xE3, 0x81, 0x97, 0xE3, 0x81, 0xBE, 0xE3, 0x81, 0x99, 0xE3, 0x80, 0x82, 0xC0, 0xA7, 0xC0, 0xA2
Invalid UTF-8 bytes found in 'txt2': 0xE3, 0x81, 0x93, 0xE3, 0x81, 0x93, 0xE3, 0x81, 0xAB, 0xE5, 0x85, 0xA5, 0xE5, 0x8A, 0x9B, 0xE3, 0x81, 0x97, 0xE3, 0x81, 0x9F, 0xE3, 0x82, 0xBD, 0xE3, 0x83, 0xBC, 0xE3, 0x82, 0xB9, 0xE3, 0x82, 0x92, 0xE9, 0x9B, 0xA3, 0xE8, 0xAA, 0xAD, 0xE5, 0x8C, 0x96, 0xE3, 0x81, 0x97, 0xE3, 0x81, 0xBE, 0xE3, 0x81, 0x99, 0xE3, 0x80, 0x82, 0xC0, 0xA7, 0xC0, 0xA2