perldoc > chr(0)

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🔍 Description

chr NUMBER

🎭 Returns the character represented by that NUMBER in the character set. For example, chr(65) is "A" in either ASCII or Unicode, and chr(0x263a) is a Unicode smiley face. 😊

⚠️ Negative values give the Unicode replacement character (chr(0xfffd)), except under the bytes pragma, where the low eight bits of the value (truncated to an integer) are used.

📝 If NUMBER is omitted, uses $_.

🔄 For the reverse, use ord.

🔬 Note that characters from 128 to 255 (inclusive) are by default internally not encoded as UTF-8 for backward compatibility reasons.

📖 See perlunicode for more about Unicode.