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strpos( )!?

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Jun 14.2004

Hi!

This script searches for the varaibles $search_string in a string. The problem is that if the search string contains text that is present in the first charater of the string then it still returns a negative result as the position is ‘0’

[code=php]
 <?php
$my_string=”This is a string”;
$search=”This”;
if(strpos($my_string,$search))
echo “Found string”;
else
echo “Aww no string present”;

?>
[/code]

how would i get around this.

Thank-you.

to post a comment
PHP

3 Comments(s) ↴

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@solavarJun 15.2004 — This is a tricky one.

Try...

[code=php]
 <?php
$my_string="This is a string";
$search="This";
$strpos = strpos($my_string,$search);


if($strpos === FALSE) // note the use of 3 equal signs
{
// We know string was definitely not found;
echo "Aww no string found!";

}
else
{
echo "String was found at position $strpos";

}
?>
[/code]
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@shimonJun 15.2004 — strpos isn't really the logical function to use here though. stristr mayb be better since it returns a proper FALSE if no match is found. Try this (and remember to use braces properly):

[code=php]<?php

$my_string = "This is a string";
$search = "This";

if (stristr($my_string, $search)) {
echo "Found string";
} else {
echo "Aww no string present";
}

?>[/code]

n.b. stristr() is case-insensitive, you could use strstr() if you want case-sensitive matching
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@NaemoauthorJun 15.2004 — Thank-you!
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