How to check whether the two strings' contents are the same? [closed] - php

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For example str1 = "hello world",str2 = "hello wordl",they have the same length,but are not same


You can use levenshtein.
If (levenshtein($str1,$str2)===0){ // identical}


Yes It is possible. you can use strcmp for string comparison.

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Match string format with regex [closed]

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I know there are tons of questions about regex string format, but I am very new to this and I haven't been able to do it myself. How can I use regex to match a string with the following format?
xx_x_a.zip
where x is a number and a is a letter. Example:
33_2_f.zip
It must not match:
33_2_f_abc.zip
The format must always be like 2digits+_+1digit+_+1letter+.zip

Simplest way:
/^[0-9]{2}_[0-9]_[a-z]\.zip$/

How to remove double quotes from json {"x":"y"} to {x:y} in php [closed]

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How to remove double quotes from json {"x":"y"} to {x:y} in PHP

If you just need to remove " from a string you can use the str_replace method.
$new_str = str_replace("\"", "", json);
I hope I was helpful.

To write a Query to sort in Uppercase in php my admin. [closed]

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How to execute a query to convert a column in UPPERCASE in php myadmin?

use
mysql Upper() function
For reference: http://www.w3resource.com/mysql/string-functions/mysql-upper-function.php

In PHP If XML Element Contains Certain Text [closed]

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In PHP is it possible to search an XML document for certain text in an element? I've looked but I can't find something that satisfies my needs.

Sure you can do that using strpos function
http://php.net/manual/en/function.strpos.php
if(strpos($xml_str, "string_to_search_for")){
echo "Found";
}

How to trim last 10 letters from each string element stored in an array in php [closed]

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Please any one help me. As I am a noobe in PHP coding. Is there any built in function to trim letters in PHP??

Lookup substr()
http://us2.php.net/substr
Should do the trick
$var = 'teststring1234567890';
substr($var, 0, -10);
returns 'teststring'

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