How to PHP For cycle letter Amurz and output AA,AB,AC when more than 26 letters

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Php loop outputs 26 uppercase and lowercase letters

For ($iTun65 / intval / 1) {$y = intval ($y); echo chr ($y / 64); echo chr ($i-$y*26 + 65);} else {echo chr ($iTun65);} echo "\ r\ n";}

This is done, which is really good after testing, and the principle is to return characters from the specified ASCII value through the chr () function of php.

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