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14.15. String Transformation Functions
Table 14.5. String Transformation Functions
| Name | Description |
|---|---|
| uc | Converts all letters to upper case. |
| lc | Converts all letters to lower case. |
| ucfirst | Converts the first letter to upper case, and all other letters to lower case. |
| num | Extracts all digits and "-" from the string. If the last two digits in the original string are preceded by "." or ",", a decimal period is inserted in the corresponding position. |
| a?b/c | Compares the string with string a, and if they are equal, replaces it with b, otherwise with c. But c can be another triplet a, b, c, so that the entire structure is, in fact, a translation table. |
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