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Samaritan's Purse

CTYPE_UPPER

Check for uppercase character(s)

SYNTAX

ctype_upper ( mixed $text ) : bool

PARAMETERS

text

The tested string.

Note: If an integer between -128 and 255 inclusive is provided, it is interpreted as the ASCII value of a single character (negative values have 256 added in order to allow characters in the Extended ASCII range). Any other integer is interpreted as a string containing the decimal digits of the integer.

RETURN

Returns TRUE if every character in text is an uppercase letter in the current locale.

EXAMPLES

1

true

2

65: A
66: B
67: C
68: D
69: E
70: F
71: G
72: H
73: I
74: J
75: K
76: L
77: M
78: N
79: O
80: P
81: Q
82: R
83: S
84: T
85: U
86: V
87: W
88: X
89: Y
90: Z

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