Online PHP editor | refs for ijGiR

<?php function truncateGumbo($string, $chars = 50, $terminator = ' …') { $cutPos = $chars - mb_strlen($terminator); $boundaryPos = mb_strrpos(mb_substr($string, 0, mb_strpos($string, ' ', $cutPos)), ' '); return mb_substr($string, 0, $boundaryPos === false ? $cutPos : $boundaryPos) . $terminator; } function truncateGordon($string, $chars = 50, $terminator = ' …') { return mb_strimwidth($string, 0, $chars, $terminator); } function truncateSoapBox($string, $chars = 50, $terminate = ' …') { $chars -= mb_strlen($terminate); if ( $chars <= 0 ) return $terminate; $string = mb_substr($string, 0, $chars); $space = mb_strrpos($string, ' '); if ($space < mb_strlen($string) / 2) return $string . $terminate; else return mb_substr($string, 0, $space) . $terminate; } function truncateMickmackusa($string, $max = 50, $terminator = ' …') { $trunc = $max - mb_strlen($terminator, 'UTF-8'); return preg_replace("~(?=.{{$max}})(?:\S{{$trunc}}|.{0,$trunc}(?=\s))\K.+~us", $terminator, $string); } $tests = [ [ 'testCase' => "Answer to the Ultimate Question of Life, the Universe, and Everything.", // 50th char ---------------------------------------------------^ 'expected' => "Answer to the Ultimate Question of Life, the …", ], [ 'testCase' => "A single line of text to be followed by another\nline of text", // 50th char ----------------------------------------------------^ 'expected' => "A single line of text to be followed by another …", ], [ 'testCase' => "âãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝ", // 50th char ---------------------------------------------------^ 'expected' => "âãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂăĄąĆćĈĉĊċČčĎďĐđ …", ], [ 'testCase' => "123456789 123456789 123456789 123456789 123456789", // 50th char doesn't exist -------------------------------------^ 'expected' => "1234567890123456789012345678901234567890123456789", ], [ 'testCase' => "Hello worldly world", // 50th char doesn't exist -------------------------------------^ 'expected' => "Hello worldly world", ], [ 'testCase' => "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWYXZ1234567890", // 50th char ---------------------------------------------------^ 'expected' => "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUV …", ], ]; foreach ($tests as ['testCase' => $testCase, 'expected' => $expected]) { echo "\tSample Input:\t\t$testCase\n"; echo "\n\ttruncateGumbo:\t\t" , truncateGumbo($testCase); echo "\n\ttruncateGordon:\t\t" , truncateGordon($testCase); echo "\n\ttruncateSoapBox:\t" , truncateSoapBox($testCase); echo "\n\ttruncateMickmackusa:\t" , truncateMickmackusa($testCase); echo "\n\tExpected Result:\t{$expected}"; echo "\n-----------------------------------------------------\n"; }