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<?php | |
/** | |
* Determina si una cadena es mayúscula, minúscula | |
* o mixta | |
* | |
* @author parzibyte | |
* @param string: $cadena: La cadena a probar | |
* @return int: 0 si es mixta, -1 si es minúscula y 1 si es mayúscula | |
*/ | |
function determinarNotacion($cadena) | |
{ | |
if ($cadena === strtoupper($cadena)) { | |
return 1; | |
} | |
if ($cadena === strtolower($cadena)) { | |
return -1; | |
} | |
return 0; | |
} | |
# Probar | |
$cadenas = ["Hola", "HOLA", "hola"]; | |
foreach ($cadenas as $cadena) { | |
$resultado = determinarNotacion($cadena); | |
if ($resultado === 1) { | |
echo "$cadena es mayúscula\n"; | |
} else if ($resultado === -1) { | |
echo "$cadena es minúscula\n"; | |
} else { | |
echo "$cadena es mixta\n"; | |
} | |
} |
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