I just can't get my head around the syntax for this. I have an array $foo and I call it within a function: wp_list_pages($foo); (this is a wordpress site).
I found this code online but can't get it to work...
I've tried both of these ways and it doesn't seem to do anything. Can anyone help?
<?php $mystring = $foo;
list ($before,$after) = split (',', $mystring);
echo $before;
?>
<?php wp_list_pages( $foo ); ?>
or this:
<?php $has_comma = (stristr($foo, ",")>-1) ? 1 : 0;
if ($has_comma) {
list ($before,$after) = split (',', $foo);
$foo = $before;
} ?>
<?php wp_list_pages( $foo ); ?>
if (false !== ($pos = strpos($foo, ','))) {
$foo = substr($foo, 0, $pos);
}
or if you're sure that there is always coma, it can be simplier:
$foo = substr($foo, 0, strpos($foo, ','));
assuming $foo has some string in it for example "This is a short, boring sentence", then:
list($before,$after) = split(',',$mystring)
//$before => "This is a short"
//$after => "boring sentence"
echo $before; //prints "This is a short"
If you are not seeing this behavior you need to make sure $foo has some string in it.
That example is a bit too convoluted. Here's a simpler one:
<?php
$mystring = "a,b,c,d egg";
$n = strpos($mystring, ',');
echo substr($mystring, 0, $n)
?>
This one just finds the index of the first "," in $mystring and gets the string up until that point.
If you want an array-based example, here is one that uses explode, since split is deprecated:
<?php
$mystring = "a,b,c,d egg";
$array = explode(',', $mystring);
echo $array[0];
?>
So explode splits $mystring on "," so that each item separated by a "," becomes its own element. Naturally the first item is the 0th index, so that's how you truncate after the commas.
split() is deprecated, try use preg_split(), or str_split(), see in php manual: http://www.php.net/manual/ro/function.split.php
Related
How can I convert to uppercase for the following example :
title-title-title
Result should be:
Title-Title-Title
I tried with ucwords but it converts like this: Title-title-title
I currently have this:
echo $title = ($this->session->userdata('head_title') != '' ? $this->session->userdata('head_title'):'Our Home Page');
In this particular string example, you could explode the strings first, use that function ucfirst() and apply to all exploded strings, then put them back together again:
$string = 'title-title-title';
$strings = implode('-', array_map('ucfirst', explode('-', $string)));
echo $strings;
Should be fairly straightforward on applying this:
$title = '';
if($this->session->userdata('head_title') != '') {
$raw_title = $this->session->userdata('head_title'); // title-title-title
$title = implode('-', array_map('ucfirst', explode('-', $raw_title)));
} else {
$title = 'Our Home Page';
}
echo $title;
echo str_replace(" ","-",ucwords(str_replace("-"," ","title-title-title")));
Fiddle
Output:
Title-Title-Title
Demo
Not as swift as Ghost's but a touch more readable for beginners to see what's happening.
//break words on delimiter
$arr = explode("-", $string);
//capitalize first word only
$ord = array_map('ucfirst', $arr);
//rebuild the string
echo implode("-", $ord);
The array_map() applies callback to the elements of the given array. Internally, it traverses through the elements in our word-filled array $arr and applies the function ucfirst() to each of them. Saves you couple of lines.
Edit #2
This isn't working for the new information added to op, as there is an answer this won't be updated to reflect that.
Edit #1
$var = "title-title-title";
$var = str_replace (" ", "_", ucwords (str_replace (" ", "_", $var));
Old, non-working
$var = "title-title-title";
$var = implode("-", ucwords (explode("-", $var)));
try the following:
$str='title-title-title';
$s='';
foreach(explode('-',$str) as $si){
$s.= ($s ? "-":"").ucfirst($si);
}
$s should be Title-Title-Title at this point
I have string that will look like this:
$string = "hello, my, name, is, az";
Now I just wanna echo whatever is there before first comma. I have been using following:
echo strstr($this->tags, ',', true);
and It has been working great, but the problem it only works php 5.3.0 and above. I am currently on PHP 5.2.
I know this could be achieve through regular express by pregmatch but I suck at RE.
Can someone help me with this.
Regards,
<?php
$string = "hello, my, name, is, az";
echo substr($string, 0, strpos($string, ','));
You can (and should) add further checks to avoid substr if there's no , in the string.
Use explode than,
$arr = explode(',', $string,2);
echo $arr[0];
You can explode this string using comma and read first argument of array like this
$string = "hello, my, name, is, az";
$str = explode(",", $string, 2);
echo $str[0];
$parts = explode(',',$string);
echo $parts[0];
You can simple use the explode function:
$string = "hello, my, name, is, az";
$output = explode(",", $string);
echo $output[0];
Too much explosives for a small work.
$str = current(explode(',', $string));
I want to be able to specify an index in a string and remove it.
I have the following:
"Hello World!!"
I want to remove the 4th index (o in Hello). Here would be the end result:
"Hell World!!"
I've tried unset(), but that hasn't worked. I've Googled how to do this and that's what everyone says, but it hasn't worked for me. Maybe I wasn't using it right, idk.
This is a generic way to solve it:
$str = "Hello world";
$i = 4;
echo substr_replace($str, '', $i, 1);
Basically, replace the part of the string before from the index onwards with the part of the string that's adjacent.
See also: substr_replace()
Or, simply:
substr($str, 0, $i) . substr($str, $i + 1)
$str="Hello World";
$str1 = substr($str,0,4);
$str2 = substr($str,5,7);
echo $str1.$str2;
This php specific of working with strings also bugged me for a while. Of course natural solution is to use string functions or use arrays but this is slower than directly working with string index in my opinion. With the following snippet issue is that in memory string is only replaced with empty � and if you have comparison or something else this is not good option. Maybe in future version we will get built in function to remove string indexes directly who knows.
$string = 'abcdefg';
$string[3] = '';
var_dump($string);
echo $string;
$myVar = "Hello World!!";
$myArray = str_split($myVar);
array_splice($myArray, 4, 1);
$myVar = implode("", $myArray);
Personal I like dealing with arrays.
(Sorry about lack of code brackets putting this up via my phone)
I think can create a function and call it like this
function rem_inx ($str, $ind)
{
return substr($str,0,$ind++). substr($str,$ind);
}
//use
echo rem_inx ("Hello World!!", 4);
I have a string that looks a little like this, world:region:bash
It divides folder names, so i can create a path for FTP functions.
However, i need at some points to be able to remove the last part of the string, so, for example
I have this world:region:bash
I need to get this world:region
The script wont be able to know what the folder names are, so some how it needs to be able to remove the string after the last colon.
$res=substr($input,0,strrpos($input,':'));
I should probably highlight that strrpos not strpos finds last occurrence of a substring in given string
$tokens = explode(':', $string); // split string on :
array_pop($tokens); // get rid of last element
$newString = implode(':', $tokens); // wrap back
You may want to try something like this:
<?php
$variable = "world:region:bash";
$colpos = strrpos($variable, ":");
$result = substr($variable, 0, $colpos);
echo $result;
?>
Or... if you create a function using this information, you get this:
<?php
function StrRemoveLastPart($string, $delimiter)
{
$lastdelpos = strrpos($string, $delimiter);
$result = substr($string, 0, $lastdelpos);
return $result;
}
$variable = "world:region:bash";
$result = StrRemoveLastPart($variable, ":");
?>
Explode the string, and remove the last element.
If you need the string again, use implode.
$items = array_pop(explode(':', $the_path));
$shotpath = implode(':', $items);
Use regular expression /:[^:]+$/, preg_replace
$s = "world:region:bash";
$p = "/:[^:]+$/";
$r = '';
echo preg_replace($p, $r, $s);
demo
Notice how $ which means string termination, is made use of.
<?php
$string = 'world:region:bash';
$string = implode(':', explode(':', $string, -1));
Say this is my string
$string = 'product[0][1][0]';
How could I use that string alone to actually get the value from an array as if I had used this:
echo $array['product'][0][1][0]
I've messed around with preg_match_all with this regex (/\[([0-9]+)\]/), but I am unable to come up with something satisfactory.
Any ideas? Thanks in advance.
You could use preg_split to get the individual array indices, then a loop to apply those indices one by one. Here's an example using a crude /[][]+/ regex to split the string up wherever it finds one or more square brackets.
(Read the [][] construct as [\]\[], i.e. a character class that matches right or left square brackets. The backslashes are optional.)
function getvalue($array, $string)
{
$indices = preg_split('/[][]+/', $string, -1, PREG_SPLIT_NO_EMPTY);
foreach ($indices as $index)
$array = $array[$index];
return $array;
}
This is prettttty hacky, but this will work. Don't know how much your array structure is going to change, either, this won't work if you get too dynamic.
$array = array();
$array['product'][0][1][0] = "lol";
$string = 'product[0][1][0]';
$firstBrace = strpos( $string, "[" );
$arrayExp = substr($string, $firstBrace );
$key = substr( $string, 0, $firstBrace );
echo $arrayExp, "<br>";
echo $key, "<br>";
$exec = "\$val = \$array['".$key."']".$arrayExp.";";
eval($exec);
echo $val;
What about using eval()?
<?php
$product[0][1][0] = "test";
eval ("\$string = \$product[0][1][0];");
echo $string . "\n";
die();
?>