is_tel

This function determines whether the provided value is of type str and contains a telephone number.

This function does not generate a change.

Function

is_tel(value)

Arguments

Return value

Returns true if the given value is of type str and contains a telephone number, else false.

Example

This code shows some return values for is_tel():

[
    is_tel( '+31 012345678' ),
    is_tel( '380-44-123-4567' ),
    is_tel( '(011) 380 44 123 4567' ),
];

Return value in JSON format

[
    true,
    true,
    true
]