php

How do I replace part of a string in PHP?

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I am trying to get the first 10 characters of a string and want to replace space with '_'.

I have

  $text = substr($text, 0, 10);
  $text = strtolower($text);

But I am not sure what to do next.

I want the string

this is the test for string.

become

this_is_th

Answers

Simply use str_replace:

$text = str_replace(' ', '_', $text);

You would do this after your previous substr and strtolower calls, like so:

$text = substr($text,0,10);
$text = strtolower($text);
$text = str_replace(' ', '_', $text);

If you want to get fancy, though, you can do it in one line:

$text = strtolower(str_replace(' ', '_', substr($text, 0, 10)));

Monday, December 19, 2022

bloedhond4-7bf0772ec507

Here's what worked best for me when trying to script this (in case anyone else comes across this like I did):

$ pecl -d php_suffix=5.6 install <package>
$ pecl uninstall -r <package>

$ pecl -d php_suffix=7.0 install <package>
$ pecl uninstall -r <package>

$ pecl -d php_suffix=7.1 install <package>
$ pecl uninstall -r <package>

The -d php_suffix=<version> piece allows you to set config values at run time vs pre-setting them with pecl config-set. The uninstall -r bit does not actually uninstall it (from the docs):

vagrant@homestead:~$ pecl help uninstall
pecl uninstall [options] [channel/]<package> ...
Uninstalls one or more PEAR packages.  More than one package may be
specified at once.  Prefix with channel name to uninstall from a
channel not in your default channel (pecl.php.net)

Options:
  ...
  -r, --register-only
        do not remove files, only register the packages as not installed
  ...

The uninstall line is necessary otherwise installing it will remove any previously installed version, even if it was for a different PHP version (ex: Installing an extension for PHP 7.0 would remove the 5.6 version if the package was still registered as installed).

Monday, December 12, 2022

shankar_damodaran

Why use regex when you can do:

string newstr = str.Replace("tag", "newtag");

string newstr = str.Replace("<tag>","<newtag>").Replace("</tag>","</newtag>");

Edited to @RaYell's comment

Sunday, November 6, 2022

friso

This is called a backreference, and you use i to refer to the i'th captured group from the pattern.

So for the pattern ^((s+)privatesfunctions__construct()), the replacement is 2def __init__.

Wednesday, October 19, 2022

mulgard

Never used any of those, but they look interesting..

Take a look at Gearman as well.. more overhead in systems like these but you get other cool stuff :) Guess it depends on your needs ..

Friday, November 11, 2022

the_falvert

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