Doc #79598 [NEW]: update string function docs please

From: danwassonpgh at hotmail dot com Operating system: PHP version: 7.4.6 Package: Documentation problem Bug Type: Documentation Problem Bug description:update string function docs please Description: ------------ Could the documentation on php.net under 'PHP Manual > Function Reference > Text Processing Strings > String Functions' mention how some of the functions (substr, strpos), handle html special chars? The example in the "Test script" shows the confusion I encountered before learning by coding and running the "Test script". Thank you Test script: --------------- $stringA = 'Lorem ipsum, <x> sit amet, consectetur </x> adipiscing'; $substrA1 = substr($stringA, 0, 24); $substrA2 = substr(htmlspecialchars($stringA), 0, 24); $stringB = 'Lorem ipsum, xxx sit amet, consectetur xxxx adipiscing'; $substrB1 = substr($stringB, 0, 24); $substrB2 = substr(htmlspecialchars($stringB), 0, 24); echo '<pre>'; echo '<br> ..............................|----|----1----|----2----|----3----|----4----|----5----|'; echo '<br> $stringA as htmlspecialchars |' . htmlspecialchars($stringA) . '|'; echo '<br> $substrA1 as raw |' . $substrA1 . '|'; echo '<br> $substrA1 as htmlspecialchars |' . htmlspecialchars($substrA1) . '|'; echo '<br> $substrA2 as raw |' . $substrA2 . '|'; echo '<br> $substrA2 as htmlspecialchars |' . htmlspecialchars($substrA2) . '|'; echo '<br> $stringB as htmlspecialchars |' . htmlspecialchars($stringB) . '|'; echo '<br> $substrB1 as raw |' . $substrB1 . '|'; echo '<br> $substrB2 as htmlspecialchars |' . $substrB2 . '|'; echo '<br></pre>'; Actual result: -------------- ..............................|----|----1----|----2----|----3----|----4----|----5----| $stringA as htmlspecialchars |Lorem ipsum, <x> sit amet, consectetur </x> adipiscing| $substrA1 as raw |Lorem ipsum, sit ame| $substrA1 as htmlspecialchars |Lorem ipsum, <x> sit ame| $substrA2 as raw |Lorem ipsum, <x> s| $substrA2 as htmlspecialchars |Lorem ipsum, &lt;x&gt; s| $stringB as htmlspecialchars |Lorem ipsum, xxx sit amet, consectetur xxxx adipiscing| $substrB1 as raw |Lorem ipsum, xxx sit ame| $substrB2 as htmlspecialchars |Lorem ipsum, xxx sit ame| -- Edit bug report at https://bugs.php.net/bug.php?id=79598&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=79598&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=79598&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=79598&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=79598&r=needscript Try newer version: https://bugs.php.net/fix.php?id=79598&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=79598&r=support Expected behavior: https://bugs.php.net/fix.php?id=79598&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=79598&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=79598&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=79598&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=79598&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=79598&r=dst IIS Stability: https://bugs.php.net/fix.php?id=79598&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=79598&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=79598&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=79598&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=79598&r=mysqlcfg