This shell script could be used to parse DocumentRoots for functions and ini directives problematic with PHP 5.4

php54_deprecated_functions

#!/bin/bash
#
# PHP 5.4 Deprecated function checker
#
# Version: 0.0.3
#
# Original Author: Michiel Roos <michiel@donationbasedhosting.org>
#
# http://www.php.net/manual/de/migration54.incompatible.php
# http://www.php.net/manual/en/migration54.deprecated.php
#
# Please note that there will be some false positives. Some PHP code is mixed
# with JS code. In JS 'split' is still a valid function.
#

PWD="/tmp"
FIND_PHP54_DEPRECATED_LOGLOCATION="php54_deprecated_functions.log"
OUTPUT=${PWD}/${FIND_PHP54_DEPRECATED_LOGLOCATION}

deprecatedFunctions54=(
# php 5.4 removed
    define_syslog_variables
    import_request_variables
    session_is_registered
    session_register
    session_unregister
    mysqli_bind_param
    mysqli_bind_result
    mysqli_client_encoding
    mysqli_fetch
    mysqli_param_count
    mysqli_get_metadata
    mysqli_send_long_data
    mysqli::client_encoding
    mysqli_stmt::stmt
# php 5.4 changed behavior
    get_magic_quotes_gpc
    get_magic_quotes_runtime
    set_magic_quotes_runtime
    array_combine
    htmlspecialchars
    htmlentities
    ob_start
# php 5.4 deprecated
    mcrypt_generic_end
    mysql_list_dbs
)

deprecatedIniDirectives54=(
# php 5.4
    register_globals
    register_long_arrays
)

len=${#deprecatedFunctions54[*]}
i=0

echo "Checking for deprectated functions in PHP 5.4 ______________________________________" > ${OUTPUT}
echo "" >> ${OUTPUT}

while [ $i -lt $len ]; do
    echo "  // checking for '${deprecatedFunctions54[$i]}()'" >> ${OUTPUT}
    grep -rn --color --include=*.php "^[^#]*[^a-zA-Z_]${deprecatedFunctions54[$i]}[[:space:]]*(" .  >> ${OUTPUT};
    echo ""  >> ${OUTPUT}
    let i++
done

len=${#deprecatedIniDirectives54[*]}
i=0

echo "Checking for deprectated ini directives in PHP 5.4 _________________________________"  >> ${OUTPUT}
echo "" >> ${OUTPUT}

while [ $i -lt $len ]; do
    echo "  // checking for '${deprecatedIniDirectives54[$i]}()'" >> ${OUTPUT}
    grep -rn --color --include=*.php "ini_set[[:space:]]*(['|\"]${deprecatedIniDirectives54[$i]}" . >> ${OUTPUT};
    echo "" >> ${OUTPUT}
    let i++
done

We’re at 5.5 already though, mind you ;-)

Indeed, PHP is at 5.5, but Debian is on stable at 5.4! ,)

But nobody runs stale ;-)

Any reason for not including function htmlentities?

No, just missing! ;)

Great! :)

I also suggest adding these two functions:

• html_entity_decode
• get_html_translation_table

@aanton Oh I missed your comment. Anyway, those seems not to be deprecated at least when looking into http://php.net/manual/function.html-entity-decode.php or http://php.net/manual/function.get-html-translation-table.php