wp_exif_frac2dec( string $str ): int|float
Converts a fraction string to a decimal.
Parameters
-
$str
string Required -
Fraction string.
Return
int|float Returns calculated fraction or integer 0 on invalid input.
Source
File: wp-admin/includes/image.php
.
View all references
function wp_exif_frac2dec( $str ) {
if ( ! is_scalar( $str ) || is_bool( $str ) ) {
return 0;
}
if ( ! is_string( $str ) ) {
return $str; // This can only be an integer or float, so this is fine.
}
// Fractions passed as a string must contain a single `/`.
if ( substr_count( $str, '/' ) !== 1 ) {
if ( is_numeric( $str ) ) {
return (float) $str;
}
return 0;
}
list( $numerator, $denominator ) = explode( '/', $str );
// Both the numerator and the denominator must be numbers.
if ( ! is_numeric( $numerator ) || ! is_numeric( $denominator ) ) {
return 0;
}
// The denominator must not be zero.
if ( 0 == $denominator ) { // phpcs:ignore WordPress.PHP.StrictComparisons.LooseComparison -- Deliberate loose comparison.
return 0;
}
return $numerator / $denominator;
}
Changelog
Version | Description |
---|---|
2.5.0 | Introduced. |