i have a variable value which may contain
309
1208
31802
Now, i need to get 3/12/318. mean the rest part of the string after cutting last two string.how can i do it in php.
Do it like that:
substr($string, $start, $length)
substr($string, -3, (strlen($string)-2) * -1);
With this expression, you start at the third from last char of the string and select all the remaining chars to the beginning.
PHP-Documentation for substr: http://php.net/manual/de/function.substr.php
Another way is dividing by 100
<?php
echo (int)(309/100)."\n";
echo (int)(1208/100)."\n";
echo (int)(31802/100)."\n";
?>
https://eval.in/628062
Related
I have a question about a String i want to count all the characters in the string. Like if i have a string
"Hello world & good morning. The date is 18.05.2016"
You can use explode() to convert string into array and then use count() function to count length of array.
echo count(explode(' ', "Hello world & good morning. The date is 18.05.2016"))
You can try this code.
<?php
$file = "C:\Users\singh\Desktop\Talkative Challenge\base_example.txt";
$document = file_get_contents($file);
$return_array = preg_split("/[\s,]+/",$document);
echo count($return_array);
echo $document;
?>
Hopefully it will be working fine.
The 3rd parameter of str_word_count allows you to set additional characters to be counted as words:
str_word_count($document, 0, '&.0..9');
&.0..9 means it will consider &, ., and range from 0 to 9.
You can count the spaces with substr_count and add one.
echo substr_count($str, " ")+1;
// 9
https://3v4l.org/oJJkt
I have a string /en/products/saucony-switchback-iso/416.html and I would like to replace the first 4th character /en/ with /de/.
The result should be /de/products/saucony-switchback-iso/416.html
This is what I've tried:
$href = "/en/products/saucony-switchback-iso/416.html";
$href_replace = substr_replace($href, "/de/", 0);
its only returning "/de/"?
You also need to define the length of how much you're replacing in the string, which in your case is 4 (or 3, seeing as the trailing / is present in both) characters.
$href = "/en/products/saucony-switchback-iso/416.html";
$href_replace = substr_replace($href, "/de/", 0, 4);
echo $href_replace;
If you don't define a length as in your example, it defaults to the entire length of the string http://php.net/manual/en/function.substr-replace.php
length
If given and is positive, it represents the length of the portion of
string which is to be replaced. If it is negative, it represents the
number of characters from the end of string at which to stop
replacing. If it is not given, then it will default to strlen( string
); i.e. end the replacing at the end of string
Which is why you're only being left with /de/
If you want to replace /en/, str_replace is a better function
echo str_replace("/en/", "/de/", $href);
Technically you only need to do 3 (but whatever), it's simple.
echo "/de" .substr("/en/products/saucony-switchback-iso/416.html", 3);
Output
/de/products/saucony-switchback-iso/416.html
Sandbox
I also think substr will be about as fast as you can get it.
I have a string like any of the following:
$str = 'A001';
$str = 'B001';
$str = 'AB001';
$str = 'B0015';
....
$str = '001A';
I want to keep only 3 characters from the end of each string.
My code is like this:
$code = str_split($str);
$code = $code[1].$code[2].$code[3];
But it works for specific cases, but not for general ones! How I can get it for general ones?
I want to keep every 3 character from end of string
Simply Use substr
echo substr($str,-3); // Last 3 characters
Second parameter to this function is start, and according to the Manual
If start is negative, the returned string will start at the start'th character from the end of string.
Fiddle
Use sbstr()
echo substr($str,-3);//get last 3 char char
Or try:
echo $str[strlen($str)-3].$str[strlen($str)-2].$str[strlen($str)-1];
You need to use substr function.
All you need to do is to pass the string, and tell it where you cut the string off. If you want to cut the string off from end, you have to provide the value in negative.
substr($str, -3);
// The third argument is optional, which specifies the length of the returned string.
I have a string that looks something like this:
abc-def-ghi-jkl-mno-pqr-stu-vwx-yz I'd like to get the content BEFORE the 4th dash, so effectively, I'd like to get abc-def-ghi-jkl assigned to a new string, then I'd like to get mno assigned to a different string.
How could I go about doing this? I tried using explode but that changed it to an array and I didn't want to do it that way.
Try this:
$n = 4; //nth dash
$str = 'abc-def-ghi-jkl-mno-pqr-stu-vwx-yz';
$pieces = explode('-', $str);
$part1 = implode('-', array_slice($pieces, 0, $n));
$part2 = $pieces[$n];
echo $part1; //abc-def-ghi-jkl
echo $part2; //mno
See demo
http://php.net/manual/en/function.array-slice.php
http://php.net/manual/en/function.explode.php
http://php.net/manual/en/function.implode.php
Can you add your source code? I done this one before but I cant remember the exact source code I used. But I am pretty sure I used explode and you can't avoid using array.
EDIT: Mark M answer is right.
you could try using substr as another possible solution
http://php.net/manual/en/function.substr.php
If I see where you are trying to get with this you could also go onto substr_replace
I guess an alternative to explode would be to find the position of the 4th - in the string and then get a substring from the start of the string up to that character.
You can find the position using a loop with the method explained at find the second occurrence of a char in a string php and then use substr(string,0,pos) to get the substring.
$string = "abc-def-ghi-jkl-mno-pqr-stu-vwx-yz";
$pos = -1;
for($i=0;$i<4;$i++)
$pos = strpos($string, '-', $pos+1);
echo substr($string, 0, $pos);
Code isn't tested but the process is easy to understand. You start at the first character (0), find a - and on the next loop you start at that position +1. The loop repeats it for a set number of times and then you get the substring from the start to that last - you found.
I am trying to extract substring from string gettting from mysql database using substr function:
substr($mystring,$startpoint,$endpoint);
here start and end point can be any number.
But I am not getting gesired result. Ptart point works but something is wrong with end point.
What is reason?
Edit
when I am pasin start ans end point like 15 and 50, start point is working fine so resultant string is starting from 15th char of main string . but end point is not working it's giving me meand end char in resultant string is not 50th of main string.
My guess is that you have mixed up endpoint with length. The third parameter of substring() is the length of the string - thus number of characters from the start point. Not the index of the last character.
<?php
$str = "A short string";
echo substr($str, 2, 2); // Prints sh
echo substr($str, 2, 4); // Prints shor
?>
If you want to specify an end point, you can calculate the length by subtracting the startpoint from your enpoint:
<?php
$startpoint = 2;
$endpoint = 5;
$str = "A short string";
echo substr($str, $startpoint, ($endpoint - $startpoint)); // Prints sho
?>
third parameter is for specifying length from start point.
But you want to get string till value in third parameter so both are different.
Try below it will work.
substr($string,$startpoint,($endpoint-$startpoint));
You should subtract $endpoint-$startpoint and pass it as third parameter to get desired output.
like below:
substr($mystring,$startpoint,($endpoint-$startpoint));
string substr ( string $string , int $start [, int $length ] )
length, not endpoint.
http://php.net/manual/en/function.substr.php
string substr (string $string, int $start [, int $length])
that means:
<?php
$text = "foobar text";
$startpoint = 0;
$endpoint = $startpoint + strlen($text);
echo substr($text, $startpoint, $endpoint);
?>