php - Get string length of each element in an array

Question

I'm trying to set the max length of each post on a site, but strlen() doesn't work with arrays. So I need to break it down to check each post in the array.

How could I adapt what I have to get this if statment to work correctly. The issue is the strlen() not accepting object.

    for($i = 0, $size = count($somePosts); $i < $size; ++$i) {
        if (strlen(utf8_decode($somePosts[$i])) > $max_length) {
            $offset = ($max_length - 3) - strlen($somePosts);
            $somePosts = substr($somePosts, 0, strrpos($reviewPosts, ' ', $offset)) . '...';
        }
    }

I'm using Doctrine to generate the array, which works fine.

Thanks.

Edit:

Error - Warning: strlen() expects parameter 1 to be string, object given

Edit 2:

No error messages now, but the code doesn't work in terms of limiting the length of the posts.

You can use array walk to alter every item within an array

baao
– baao

2015-01-21 22:33:18 +00:00
Commented Jan 21, 2015 at 22:33 — baao
– baao, Commented Jan 21, 2015 at 22:33

IMSoP · Accepted Answer · 2015-01-21 22:33:22Z

3

You need to access the current array item like $somePosts[$i] and not $somePosts

for($i = 0, $size = count($somePosts); $i < $size; ++$i) {
    if (strlen(utf8_decode($somePosts[$i])) > $max_length) {
        $offset = ($max_length - 3) - strlen($somePosts[$i]);
        $somePosts[$i] = substr($somePosts[$i], 0, strrpos($reviewPosts, ' ', $offset)) . '...';
    }
}

edited Jan 21, 2015 at 22:33

IMSoP

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answered Jan 21, 2015 at 22:31

Class

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7 Comments

Dunney Over a year ago

sorry that was a typo, yea the error is still expects string but object given.

Class Over a year ago

Then you need to convert the object to a array, which I'm not familiar with Doctrine but I imagine theres some function that does this.

Dunney Over a year ago

It's strange behaviour, because I tried changing the $somePosts to array from object, and it says array given. Then the code above says Object given.

Class Over a year ago

Maybe add some of the extra code that converts the array to your question

Dunney Over a year ago

The array is simply a list of String Entities from the DB declared in my ORM. The array works fine, the only issue is when I try to use strlen for each entity, so I don't end up with a page with huge blocks of text. Somewhere in there something isn't correct. Thanks for helping though.

|

DarkBee · Accepted Answer · 2015-01-21 22:42:36Z

0

As alternative you can use array_map

<?php

$strs = array('abcdefgh', 'defghjklmn', 'ghjefggezgzgezg');
$max = 5;
$strs = array_map(function($val) use ($max) {
    if (strlen($val.'') < $max) return $val.'';
    return substr($val.'', 0,$max-3).'...';
},$strs);

var_dump($strs);

EDIT implicit casts added to cast object to string

edited Jan 21, 2015 at 22:42

answered Jan 21, 2015 at 22:33

DarkBee

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6 Comments

DarkBee Over a year ago

replace $val with $val.'' to cast the object to string (in the if and the substr)

Dunney Over a year ago

Catchable Fatal Error: Object of class "\bundle\Entity\..." could not be converted to string

DarkBee Over a year ago

You should override/implement a toString method in your entity. See this blog

Class Over a year ago

Wrong blog? this isn't a html/regex problem

Dunney Over a year ago

true, nothing to do with that. The entity is declared as a String in ORM.

|

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