(PHP 4 )

substr_count -- Count the number of substring occurrences


int substr_count ( string haystack, string needle)

substr_count() returns the number of times the needle substring occurs in the haystack string.

例子 1. substr_count() example

echo substr_count("This is a test", "is"); // prints out 2

See also count_chars(), strpos(), substr(), and strstr().

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