PHP Substring Extraction. Get the String Before the First '/' or the Whole String

PHP substring extraction. Get the string before the first '/' or the whole string

Use explode()

$arr = explode("/", $string, 2);
$first = $arr[0];

In this case, I'm using the limit parameter to explode so that php won't scan the string any more than what's needed.

Return the portion of a string before the first occurrence of a character in PHP

You could do this:

$string = 'The quick brown fox jumped over the lazy dog';
$substring = substr($string, 0, strpos($string, ' '));

But I like this better:

list($firstWord) = explode(' ', $string);

PHP get everything in a string before underscore

You should simple use:

$imagePreFix = substr($fileinfo['basename'], 0, strpos($fileinfo['basename'], "_"));

I don't see any reason to use explode and create extra array just to get first element.

You can also use (in PHP 5.3+):

$imagePreFix = strstr($fileinfo['basename'], '_', true); 

php string function to get substring before the last occurrence of a character

This is kind of a cheap way to do it, but you could split, pop, and then join to get it done:

$string = 'Hello World Again';
$string = explode(' ', $string);
array_pop($string);
$string = implode(' ', $string);

How to get everything after a certain character?

The strpos() finds the offset of the underscore, then substr grabs everything from that index plus 1, onwards.

$data = "123_String";    
$whatIWant = substr($data, strpos($data, "_") + 1);    
echo $whatIWant;

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If you also want to check if the underscore character (_) exists in your string before trying to get it, you can use the following:

if (($pos = strpos($data, "_")) !== FALSE) { 
    $whatIWant = substr($data, $pos+1); 
}

Using PHP to Get Character Before the First Period?

you can use strpos and substr functions
strpos - it'll return index of first occurrence of substring
substr - return specific part of string

$domain='example.com';
$lastchar=substr($domain, strpos($domain,'.')-1, 1);

How to get a substring between two strings in PHP?

If the strings are different (ie: [foo] & [/foo]), take a look at this post from Justin Cook.
I copy his code below:

function get_string_between($string, $start, $end){
    $string = ' ' . $string;
    $ini = strpos($string, $start);
    if ($ini == 0) return '';
    $ini += strlen($start);
    $len = strpos($string, $end, $ini) - $ini;
    return substr($string, $ini, $len);
}

$fullstring = 'this is my [tag]dog[/tag]';
$parsed = get_string_between($fullstring, '[tag]', '[/tag]');

echo $parsed; // (result = dog)

Remove portion of a string after a certain character

$variable = substr($variable, 0, strpos($variable, "By"));

In plain english: Give me the part of the string starting at the beginning and ending at the position where you first encounter the deliminator.

how to get everything before and after a certain word in string

If you are certain that your input string contains " times " then you can do this:

$input = "5 times 8";
list($a, $b) = explode(' times ', $input);

echo $a; // "5"
echo $b; // "8"

If you need to do something a little more complex, use regular expressions:

$input = "5 times 8";
if (preg_match('!(\d+)\s*times\s*(\d+)!i', $input, $m)){
    $a = $m[1];
    $b = $m[2];
}

get string before last occurrence of specific character

echo dirname('js/jstree/_lib/jquery.js');

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