grapheme_strrpos()

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)

Find position(in grapheme units)of last occurrence of a string

说明

Find position(in grapheme units)of last occurrence of a string

参数

The string to look in. Must be valid UTF-8.

The string to look for. Must be valid UTF-8.

The optional $offset parameter allows you to specify where in $haystack to start searching as an offset in grapheme units(not bytes or characters). The position returned is still relative to the beginning of haystack regardless of the value of $offset.

返回值

Returns the position as an integer. If needle is not found, grapheme_strrpos()will return boolean FALSE.

范例

grapheme_strrpos() example

以上例程会输出：

2

参见

• grapheme_stripos()Find position(in grapheme units)of first occurrence of a case-insensitive string
• grapheme_stristr()Returns part of haystack string from the first occurrence of case-insensitive needle to the end of haystack
• grapheme_strpos()Find position(in grapheme units)of first occurrence of a string
• grapheme_strripos()Find position(in grapheme units)of last occurrence of a case-insensitive string
• grapheme_strstr()Returns part of haystack string from the first occurrence of needle to the end of haystack
• » Unicode Text Segmentation: Grapheme Cluster Boundaries

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