explode function in C (http://www.php.net/manual/en/function.explode.php)

explode.c

char** explode(char delimiter, char* str) {
	int l = strlen(str), i=0, j=0, k=0;
	char x = NULL;
	char** r = (char**)realloc(r, sizeof(char**));
	r[0] = (char*)malloc(l*sizeof(char));
	while (i<l+1) {
		x = str[i++];
		if (x==delimiter || x=='\0') {
			r[j][k] = '\0';
			r[j] = (char*)realloc(r[j], k*sizeof(char));
			k = 0;
			r = (char**)realloc(r, (++j+1)*sizeof(char**));
			r[j] = (char*)malloc(l*sizeof(char));
		} else {
			r[j][k++] = x;
		}
	}
	return r;
}