string position

saeed99

hi every one

i am trying to get a position of a string dynamically

for example: i need to return a character number 100 in any string

how can i do it (is thier any function supports this kind of problem)

thanks for the help

Drakla

php has loads of string functions, but if you have a string $str then $str{99} will return its 100th character - presuming it's that long, which you can check with [man]strlen[/man]

halojoy

strcmp -- Binary safe string comparison
strcoll -- Locale based string comparison
strcspn -- Find length of initial segment not matching mask
strip_tags -- Strip HTML and PHP tags from a string
stripcslashes -- Un-quote string quoted with addcslashes()
stripos -- Find position of first occurrence of a case-insensitive string
stripslashes -- Un-quote string quoted with addslashes()
stristr -- Case-insensitive strstr()
strlen -- Get string length

I am sure you will find something suitable in
String Functions Manual:
http://php.net/strings

🆒

saeed99

you didn't undestand my question

the strlen function will return the length of the string (integer) but how can we get the position number (character number )100 of this character this is the question

very smple examle:
$string="hello world";
the $string has length of 11 , suppose that i need to return the position 7 in this string or 8

the strlen dose't help in this situation

the strpos dosn't help becouse you need to give the string name and the charactr name in order to determine its position in the string

Installer

There are a lot of string functions. If you check the link that halojoy provided, you'll find the exact one you need. Hint: It starts with "substr".

Drakla didn't say that "strlen()" would get your answer. He suggested that you could use it to make sure the string is as long as you expect it to be.

Drakla

I gave the answer - if you want to find the character at position 11 you use $str{10}, if you want to find the character at position 100 you use $str{99}.

"suppose that i need to return the position 7 in this string or 8" that doesn't actually make an sense. If you meant "I need to return the character at position 7" then that's what I interpreted it to mean, and what my answer still means.