strstr

Changing a string

Hello, linux gcc c99 I am wondering what would be the best technique. To change a string. I am using strstr(); I have a filename called "file.vce" and I want to change the extension to "file.wav". Is this the best method: char file_name[80] = "filename.vce"; char *new_file_name = NULL; new_file_name = strstr(file_name, "vce"); strnc...

strstr to show string before occurance

I want to get the first bit of the string after the occurrence of the needle like this... $user = strstr('[email protected]', '@', true); But this only works with PHP Version 5.3.0, I have 5.2.9 Is there a way I can get the same results? ...

php only get the first occurrence of a word from an array.

Hello, I have an array of tags that I'm pulling from a database, I am exporting the tags out into a tag cloud. I'm stuck on getting only the first instance of the word. For example: $string = "test,test,tag,tag2,tag3"; $getTags = explode("," , $string); foreach ($getTags as $tag ){ echo($tag); } This would output the test...

How to use strstr with $_SERVER['HTTP_REFERER']

I'm using php to make it so that incoming traffic to my website will append information depending on the search engine. I'm setting $_SESSION['kw'], if it's not already set, to tel me that it's seo and to append the search terms: if (isset($result['q'])) $_SESSION['kw'] = 'seo-'.str_replace('\\"',"X",$result['q']); elseif (isse...

array iteration strstr in c

I was wondering if it's safe to do the following iteration to find the first occurrence of str within the array or if there is a better way. Thanks #include <stdio.h> #include <string.h> const char * list[] = {"One","Two","Three","Four","Five"}; char *c(char * str) { int i; for (i = 0; i < 5; i++) { if (strstr(str, li...

strstr matching first occurrence in c

I was wondering how could I match the string "Just" in str1 if str1 contains the strings as: "this is Just/1.1.249.4021 a test" // "Just" will always be the same I'm trying to match it using strstr but so far it won't match because of the /... Any suggestions on how to match it? Thanks ...

extracting string occurrence in c

I have a string that look something like this: long_str = "returns between paragraphs 20102/34.23\" - 9203 1232 \"test\" \"basic HTML\""; Note: Quotes are part of the string. int match(char *long_str){ char * str; if ((str = strchr(long_str, '"')) != NULL) str++; // last " ? else return 1; return 0; } Using strstr ...

parsing/matching string occurrence in C

I have the following string: const char *str = "\"This is just some random text\" 130 28194 \"Some other string\" \"String 3\"" I would like to get the the integer 28194 of course the integer varies, so I can't do strstr("20194"). So I was wondering what would be a good way to get that part of the string? I was thinking to use #in...

occurance of string

i know you can find the first and last occurrence in a string using strstr() and strchr but how do i find the second occurrence, and the third occurrence of needle inside haystack? im using this to find the last occurrence of needle and the first occurrence of another needle and their position, then return the string that is in between e...

strstr and occurrences to match

I have several possible occurrences to test with strstr. if ((a = strstr(string, "FOO")) != NULL || (a = strstr(string, "BAR")) != NULL || (a = strstr(string, "FOO2")) != NULL ||(a = strstr(string, "BAR2")) != NULL || (a = strstr(string, "FOO3")) != NULL ||(a = strstr(string, "BAR3")) != NULL) // do something and then based on...

Optimized version of strstr (search has constant length)

My C program had a lot of strstr function calls. The standard library strstr is already fast but in my case the search string has always length of 5 characters. I replaced it with a special version to gain some speed: int strstr5(const char *cs, const char *ct) { while (cs[4]) { if (cs[0] == ct[0] cs++; } ...

strstr() equivalent in C#

Hi, I have two byte[] and I want to find the first occurrence of the second byte[] in the first byte[] (or a range in it). I don't want to use strings for efficiency (translating the first byte[] to a string will be inefficient). Basically I believe that's what strstr() does in C. What is the best way to do that (so it be efficient a...

strstr through pointers in c language

is this the standard code for strstr i made???? char* fstrset(char *s,char *t) { int b, i=0,j=0; while(*(s+i)!='\0') { if(*(t+j)=='\0') break; else if(*(s+i)==*(t+j)) { i++;j++;b=1; } else { i++;b=0;j=0; } } if(b==0) return((char*)NULL); else if(b==1) return(s+i-j); } ...

PHP: How to find the beginning and end of a substring in a string?

Hi, This is the content of one mysql table field: Flash LEDs: 0.5W LED lamps: 5mm Low Powers: 0.06W, 0.2W Remarks(1): this is remark1 ---------- Accessories: Light Engine Lifestyle Lights: Ambion, Crane Fun Office Lights: OL-Deluxe Series Street Lights: Dolphin Retrofits: SL-10A, SL-60A Remarks(2): this is remark2 ---------- Infrared R...

Getting a substring in C

I have a string in the following format: "R: 625.5m E:-32768m" What's the most efficient way to pull out the 625.5? ...

Converting a C (\0 terminated) string to a PHP string

PHP is one of those languages I use periodically, but usually have to dust the cobwebs off when I start using it again. The same applies this week whilst I port some C code to PHP. This uses a lot of AES encryption and SHA256 hashing - all working fine so far. However, decrypted strings come out in "C" form - i.e. terminated with a zero ...