Pangram checker: Difference between revisions

</pre>

Using array

<lang php>function is_pangram( $sentence ) {

// define "alphabet"

$alpha = range( 'a', 'z' );

// split lowercased string into array

$a_sentence = str_split( strtolower( $sentence ) );

// check that there are no letters present in alpha not in sentence

return empty( array_diff( $alpha, $a_sentence ) );

}

$tests = array(

"The quick brown fox jumps over the lazy dog.",

"The brown fox jumps over the lazy dog.",

"ABCDEFGHIJKL.NOPQRSTUVWXYZ",

"ABC.D.E.FGHI*J/KL-M+NO*PQ R\nSTUVWXYZ",

"How vexingly quick daft zebras jump",

"Is hotdog?",

"How razorback-jumping frogs can level six piqued gymnasts!"

);

foreach ( $tests as $txt ) {

echo '"', $txt, '"', PHP_EOL;

echo is_pangram( $txt ) ? "Yes" : "No", PHP_EOL, PHP_EOL;

}

</lang>

{{Out}}

<pre>

"The quick brown fox jumps over the lazy dog."

Yes

"The brown fox jumps over the lazy dog."

No

"ABCDEFGHIJKL.NOPQRSTUVWXYZ"

No

"ABC.D.E.FGHI*J/KL-M+NO*PQ R

STUVWXYZ"

Yes

"How vexingly quick daft zebras jump"

Yes

"Is hotdog?"

No

"How razorback-jumping frogs can level six piqued gymnasts!"

Yes