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BaseInflector, yii\helpers\BaseInflector | API Documentation for Yii 2.0

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The rules for converting a word into its plural form. The keys are the regular expressions and the values are the corresponding replacements.

The rules for converting a word into its singular form. The keys are the regular expressions and the values are the corresponding replacements.

The special rules for converting a word between its plural form and singular form. The keys are the special words in singular form, and the values are the corresponding plural form.

Fallback map for transliteration used by transliterate() when intl isn't available.

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Converts a CamelCase name into an ID in lowercase.

Words in the ID may be concatenated using the specified character (defaults to '-'). For example, 'PostTag' will be converted to 'post-tag'.

The string to be converted

The character used to concatenate the words in the ID

Whether to insert a separator between two consecutive uppercase chars, defaults to false

The resulting ID

Source code

                public static function camel2id($name, $separator = '-', $strict = false)
{
    if (empty($name)) {
        return (string) $name;
    }
    $regex = $strict ? '/\p{Lu}/u' : '/(?<!\p{Lu})\p{Lu}/u';
    if ($separator === '_') {
        return mb_strtolower(trim(preg_replace($regex, '_\0', $name), '_'), self::encoding());
    }
    return mb_strtolower(trim(str_replace('_', $separator, preg_replace($regex, $separator . '\0', $name)), $separator), self::encoding());
}

            

Converts a CamelCase name into space-separated words.

For example, 'PostTag' will be converted to 'Post Tag'.

The string to be converted

Whether to capitalize the first letter in each word

The resulting words

Source code

                public static function camel2words($name, $ucwords = true)
{
    if (empty($name)) {
        return (string) $name;
    }
    
    
    $label = preg_replace('/(?<=\p{Ll})\p{Lu}|(?<=\p{L})\p{Lu}(?=\p{Ll})/u', ' \0', $name);
    $label = mb_strtolower(trim(str_replace(['-', '_', '.'], ' ', $label)), self::encoding());
    return $ucwords ? StringHelper::mb_ucwords($label, self::encoding()) : $label;
}

            

Returns given word as CamelCased.

Converts a word like "send_email" to "SendEmail". It will remove non alphanumeric character from the word, so "who's online" will be converted to "WhoSOnline".

See also variablize().

Source code

                public static function camelize($word)
{
    if (empty($word)) {
        return (string) $word;
    }
    return str_replace(' ', '', StringHelper::mb_ucwords(preg_replace('/[^\pL\pN]+/u', ' ', $word), self::encoding()));
}

            

Converts a table name to its class name.

For example, converts "people" to "Person".

Source code

                public static function classify($tableName)
{
    if (empty($tableName)) {
        return (string) $tableName;
    }
    return static::camelize(static::singularize($tableName));
}

            

Source code

                protected static function hasIntl()
{
    return extension_loaded('intl');
}

            

Returns a human-readable string from $word.

The string to humanize

Whether to set all words to uppercase or not

Source code

                public static function humanize($word, $ucAll = false)
{
    if (empty($word)) {
        return (string) $word;
    }
    $word = str_replace('_', ' ', preg_replace('/_id$/', '', $word));
    $encoding = self::encoding();
    return $ucAll ? StringHelper::mb_ucwords($word, $encoding) : StringHelper::mb_ucfirst($word, $encoding);
}

            

Converts an ID into a CamelCase name.

Words in the ID separated by $separator (defaults to '-') will be concatenated into a CamelCase name. For example, 'post-tag' is converted to 'PostTag'.

The ID to be converted

The character used to separate the words in the ID

The resulting CamelCase name

Source code

                public static function id2camel($id, $separator = '-')
{
    if (empty($id)) {
        return (string) $id;
    }
    return str_replace(' ', '', StringHelper::mb_ucwords(str_replace($separator, ' ', $id), self::encoding()));
}

            

Converts number to its ordinal English form. For example, converts 13 to 13th, 2 to 2nd .

..

Source code

                public static function ordinalize($number)
{
    if (in_array($number % 100, range(11, 13))) {
        return $number . 'th';
    }
    switch ($number % 10) {
        case 1:
            return $number . 'st';
        case 2:
            return $number . 'nd';
        case 3:
            return $number . 'rd';
        default:
            return $number . 'th';
    }
}

            

Converts a word to its plural form.

Note that this is for English only! For example, 'apple' will become 'apples', and 'child' will become 'children'.

Source code

                public static function pluralize($word)
{
    if (empty($word)) {
        return (string) $word;
    }
    if (isset(static::$specials[$word])) {
        return static::$specials[$word];
    }
    foreach (static::$plurals as $rule => $replacement) {
        if (preg_match($rule, $word)) {
            return preg_replace($rule, $replacement, $word);
        }
    }
    return $word;
}

            

Converts a list of words into a sentence.

Special treatment is done for the last few words. For example,

$words = ['Spain', 'France'];
echo Inflector::sentence($words);


$words = ['Spain', 'France', 'Italy'];
echo Inflector::sentence($words);


$words = ['Spain', 'France', 'Italy'];
echo Inflector::sentence($words, ' & ');

The words to be converted into an string

The string connecting words when there are only two

The string connecting the last two words. If this is null, it will take the value of $twoWordsConnector.

The string connecting words other than those connected by $lastWordConnector and $twoWordsConnector

The generated sentence

Source code

                public static function sentence(array $words, $twoWordsConnector = null, $lastWordConnector = null, $connector = ', ')
{
    if ($twoWordsConnector === null) {
        $twoWordsConnector = Yii::t('yii', ' and ');
    }
    if ($lastWordConnector === null) {
        $lastWordConnector = $twoWordsConnector;
    }
    switch (count($words)) {
        case 0:
            return '';
        case 1:
            return reset($words);
        case 2:
            return implode($twoWordsConnector, $words);
        default:
            return implode($connector, array_slice($words, 0, -1)) . $lastWordConnector . end($words);
    }
}

            

Returns the singular of the $word.

Source code

                public static function singularize($word)
{
    if (empty($word)) {
        return (string) $word;
    }
    $result = array_search($word, static::$specials, true);
    if ($result !== false) {
        return $result;
    }
    foreach (static::$singulars as $rule => $replacement) {
        if (preg_match($rule, $word)) {
            return preg_replace($rule, $replacement, $word);
        }
    }
    return $word;
}

            

Returns a string with all spaces converted to given replacement, non word characters removed and the rest of characters transliterated.

If intl extension isn't available uses fallback that converts latin characters only and removes the rest. You may customize characters map via $transliteration property of the helper.

An arbitrary string to convert

The replacement to use for spaces

Whether to return the string in lowercase or not. Defaults to true.

The converted string.

Source code

                public static function slug($string, $replacement = '-', $lowercase = true)
{
    if (empty($string)) {
        return (string) $string;
    }
    if ((string)$replacement !== '') {
        $parts = explode($replacement, static::transliterate($string));
    } else {
        $parts = [static::transliterate($string)];
    }
    $replaced = array_map(function ($element) use ($replacement) {
        $element = preg_replace('/[^a-zA-Z0-9=\s—–-]+/u', '', $element);
        return preg_replace('/[=\s—–-]+/u', $replacement, $element);
    }, $parts);
    $string = trim(implode($replacement, $replaced), $replacement);
    if ((string)$replacement !== '') {
        $string = preg_replace('#' . preg_quote($replacement, '#') . '+#', $replacement, $string);
    }
    return $lowercase ? strtolower($string) : $string;
}

            

Converts a class name to its table name (pluralized) naming conventions.

For example, converts "Person" to "people".

The class name for getting related table_name

Source code

                public static function tableize($className)
{
    if (empty($className)) {
        return (string) $className;
    }
    return static::pluralize(static::underscore($className));
}

            

Converts an underscored or CamelCase word into a English sentence.

Source code

                public static function titleize($words, $ucAll = false)
{
    if (empty($words)) {
        return (string) $words;
    }
    $words = static::humanize(static::underscore($words), $ucAll);
    return $ucAll ? StringHelper::mb_ucwords($words, self::encoding()) : StringHelper::mb_ucfirst($words, self::encoding());
}

            

Returns transliterated version of a string.

If intl extension isn't available uses fallback that converts latin characters only and removes the rest. You may customize characters map via $transliteration property of the helper.

Source code

                public static function transliterate($string, $transliterator = null)
{
    if (empty($string)) {
        return (string) $string;
    }
    if (static::hasIntl()) {
        if ($transliterator === null) {
            $transliterator = static::$transliterator;
        }
        return transliterator_transliterate($transliterator, $string);
    }
    return strtr($string, static::$transliteration);
}

            

Converts any "CamelCased" into an "underscored_word".

Source code

                public static function underscore($words)
{
    if (empty($words)) {
        return (string) $words;
    }
    return mb_strtolower(preg_replace('/(?<=\\pL)(\\p{Lu})/u', '_\\1', $words), self::encoding());
}

            

Same as camelize but first char is in lowercase.

Converts a word like "send_email" to "sendEmail". It will remove non alphanumeric character from the word, so "who's online" will be converted to "whoSOnline".

Source code

                public static function variablize($word)
{
    if (empty($word)) {
        return (string) $word;
    }
    $word = static::camelize($word);
    return mb_strtolower(mb_substr($word, 0, 1, self::encoding())) . mb_substr($word, 1, null, self::encoding());
}

            

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