[Prob]php file handling

[debasishgang7]

I wanna write a script which will count the number of occurrence of a given string from a text file.
Suppose a text file content many phone numbers and many of them occurs several times on that text file.I am gonna provide a particular number and i want that script to count the number of presence of that given number.
Ex:
Suppose the number 9988112233 occurs 15 times in a certain text file.So the script should return 15.
Hope i am clear..

[pzuurveen]

standard php function

substr-count

[debasishgang7]

thanks for reply ..but how can i implement this with the file??

[debasishgang7]

thanks a lot for help...!!!I have done it...