PHP method to find the position of the first occurrence of a substring in a string
PHP method to find the position of the first occurrence of a substring in a string
PHP Reference: https://www.php.net/manual/en/function.strpos.php
Questions tagged [strpos]
730 questions
5
votes
6 answers
Find part of a string and output the whole string
I would like to find part of a string and if true I want to ouput the whole of the string that it finds.
Below is an example:
$Towns = "Eccleston, Aberdeen, Glasgow";
$Find = "Eccle";
if(strstr($Find, $Towns)){
echo outputWholeString($Find,…
Connor Simpson
- 487
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5
votes
2 answers
php, strpos extract digit from string
I have a huge html code to scan. Until now i have been using preg_match_all to extract desired parts from it. The problem from the start was that it was extremely cpu time consuming. We finally decided to use some other method for extraction. I read…
Mevia
- 1,517
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5
votes
2 answers
How to use PHP strpos not case sensitive?
I have made a php script that searches a whole directory with text files in it, everything works fine, except that it is case sensitive. How would i search without it being case sensitive? Here's the code i have so far:
Jacoby Yarrow
- 155
- 1
- 13
5
votes
4 answers
strpos returns true always in php
I wrote this code:
$token="Birth";
$msg="I am awesome and I know it";
if(strpos(strtolower($msg),strtolower($token)) >=0){
echo 'ok';
}
It prints ok
As we can see there is no word like Birth in the message but still it returns true. I guess it…
user1765876
5
votes
5 answers
Sort search results from MySQL by the position of the search query in the string using PHP
I want my search results to be in order of string position from smallest to greatest.
For example, searching for "banana" returns:
Babyfood, plums, bananas and rice, strained
Bananas, dehydrated, or banana powder
Bananas, raw
Bread, banana,…
user248600
5
votes
2 answers
PHP: strpos & substr with UTF-8
Say I have a long UTF-8 encoded string.
And say I want to detect if $var exists in this string.
Assuming $var is always going to be simple letters or numbers of ascii characters (e.g. "hello123") I shouldn't need to use mb_strpos or iconv_strpos…
Alasdair
- 13,348
- 18
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- 138
5
votes
4 answers
strpos() within while loop never ends
There's a string,
$string = 'Foo, Bar, Test,';
All I want to do is to count the number of the commas within a string.
But everything leads to infinite while loop.
So, I've tried #1:
$count = 0;
while($pos = strpos($string, ',') !== FALSE){
…
Yang
- 8,580
- 8
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- 58
4
votes
3 answers
which is the fast process strpos()/stripos() or preg_match() in php
I just want to known which one will be fast of strpos()/stripos() or preg_match() functions in php.
Jayesh Dongare
- 61
- 1
- 9
4
votes
5 answers
str_replace with strpos?
The str_replace function with a strpos checking can avoid extra work?
METHOD 1
...
if (strpos($text, $tofind) !== FALSE)
$text = str_replace($tofind, $newreplace, $text);
...
METHOD 2
...
$text = str_replace($tofind, $newreplace,…
Manz
- 948
- 12
- 26
4
votes
2 answers
why is a strpos that is !== false not true?
Consider the following example:
$a='This is a test';
If I now do:
if(strpos($a,'is a') !== false) {
echo 'True';
}
It get:
True
However, if I use
if(strpos($a,'is a') === true) {
echo 'True';
}
I get nothing. Why is !==false not ===true…
Pete
- 105
- 1
- 9
4
votes
3 answers
Find whole word with strpos()
Hello people :)
I'm trying to use strpos() to find whole words in a sentence. But at the moment, it also find the word if it just are a part of another word. For example:
$mystring = "It's a beautiful morning today!";
$findme = "a";
$pos =…
Simon Thomsen
- 1,351
- 7
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- 37
4
votes
1 answer
strpos not working for a certain string
I'm trying to use strpos to find a string inside another string, but for some reason it isn't working for a certain string, even though it's working for the other one. What am I doing wrong?
frosty
- 2,559
- 8
- 37
- 73
4
votes
4 answers
Use preg_match() to find start/stop positions of a substring matching a pattern
I want to copy a substring of a string using PHP.
The regex for the first pattern is /\d\|\d\w0:/
The regex for the second pattern is /\d\w\w\d+:\s-\s:/
Is it possible combining preg_match with strpos to get the exact positions from start to end…
user366121
- 3,203
- 9
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- 69
4
votes
4 answers
PHP strpos() function comparision of string conflicts in numbers
I am using strpos() function to find the string in an array key members.
foreach($_POST as $k => $v){
// for all types of questions of chapter 1 only
$count = 0;
if(strpos($k, 'chap1') !== false){
$count++;
}
}
I know…
TheManish
- 183
- 1
- 15
4
votes
1 answer
How to return true if strpos is not exactly false?
I know how strpos works, and it is working as expected, but the return in the if function isn't.
Some code:
foreach ($socialstream as $key => $social) {
//filtering in here
$result= $this->search_objects($social);
....
}
My function…
Bananam00n
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