ctype_print

PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8
ctype_print - Check for printable character(s)
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Code Examples

ctype_print( mixed$text ): bool

Checks if all of the characters in the provided string, text, are printable.

Parameters

text

The tested string.

Note:

If an int 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.

Warning:

As of PHP 8.1.0, passing a non-string argument is deprecated. In the future, the argument will be interpreted as a string instead of an ASCII codepoint. Depending on the intended behavior, the argument should either be cast to string or an explicit call to chr should be made.

Return Values

Returns true if every character in text will actually create output (including blanks). Returns false if text contains control characters or characters that do not have any output or control function at all. When called with an empty string the result will always be false.

Related Functions

  • ctype_cntrl - Check for control character(s)
  • ctype_graph - Check for any printable character(s) except space
  • ctype_punct - Check for any printable character which is not whitespace or an alphanumeric character

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Function ctype_print:

Character type checking Functions

Most used PHP functions