strstr function not working

Question

 #include <stdio.h>
 #include<cs50.h>
 #include <string.h>
 char array[][80] = {"CS50", "C Programming", "Java", "Python", "PHP",};
 void find(char search[])
 {
     for (int i = 0; i < 5; i++) 
     {
         if (strstr(array[i], search))
         {
         printf("Track %i: '%s'\n", i, array[i]);
         }
     }
 }
 int main()
 {
     char searchfor[80];
     puts("Search for:");
     fgets(searchfor,80,stdin);
     find(searchfor);
     return 0;
 }

Answer 1

Are you sure the problem is with strstr? Did you use debug50 or gdb to make sure everything is as you expect? Did you read the man page on fgets? Of particular interest:

fgets() reads in at most one less than size characters from stream and stores them into the buffer pointed to by s. Reading stops after an EOF or a newline. If a newline is read, it is stored into the buffer. A terminating null byte ('\0') is stored after the last character in the buffer.

Answer 2

 #include <stdio.h>
 #include<cs50.h>
 #include <string.h>
 char array[5][80] = {"CS50", "C Programming", "Java", "Python", "PHP",};
 char* find(char search[])
 {


     for (int i = 0; i < 5; i++) 
     {
         char* n = strstr(array[i], search);
         if (n != NULL)
         {

           return (n);        //printf("Track %i: '%s'\n", i, array[i]);
         }
     }
     return "no found";
 }
 //void find(char search[]);
 int main()
 {
     char* searchfor;
     puts("Search for:");
     searchfor = GetString();
     char* m = find(searchfor);
     printf("Track : '%s'\n" , m);
     free(searchfor);
     return 0;
 }

Is a possible alternative to your program