diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0513e41..d8b5edc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,6 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - '7.0'
           - '7.1'
           - '7.2'
           - '7.3'
diff --git a/README.md b/README.md
index d825f7a..3e454c8 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ Installation instructions to use the `composer` command can be found on https://
 
 ### Requirements
 
-PHP Curl Class works with PHP 8.3, 8.2, 8.1, 8.0, 7.4, 7.3, 7.2, 7.1, and 7.0.
+PHP Curl Class works with PHP 8.3, 8.2, 8.1, 8.0, 7.4, 7.3, 7.2, and 7.1.
 
 ### Quick Start and Examples
 
diff --git a/composer.json b/composer.json
index 6641a2d..547b091 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
         }
     ],
     "require": {
-        "php": ">=7.0",
+        "php": ">=7.1",
         "ext-curl": "*"
     },
     "require-dev": {
diff --git a/src/Curl/Curl.php b/src/Curl/Curl.php
index 04cbcd9..291040f 100644
--- a/src/Curl/Curl.php
+++ b/src/Curl/Curl.php
@@ -6,8 +6,8 @@ namespace Curl;
 
 class Curl extends BaseCurl
 {
-    const VERSION = '9.19.2';
-    const DEFAULT_TIMEOUT = 30;
+    public const VERSION = '9.19.2';
+    public const DEFAULT_TIMEOUT = 30;
 
     public $curl = null;
     public $id = null;
diff --git a/tests/Helper.php b/tests/Helper.php
index 50b6886..55609a8 100644
--- a/tests/Helper.php
+++ b/tests/Helper.php
@@ -8,8 +8,8 @@ use Curl\Curl;
 
 class Test
 {
-    const TEST_URL = 'http://127.0.0.1:8000/';
-    const ERROR_URL = 'http://1.2.3.4/';
+    public const TEST_URL = 'http://127.0.0.1:8000/';
+    public const ERROR_URL = 'http://1.2.3.4/';
 
     public $message;
 
diff --git a/tests/PHPCurlClass/PHPCurlClassTest.php b/tests/PHPCurlClass/PHPCurlClassTest.php
index d2033ae..857b019 100644
--- a/tests/PHPCurlClass/PHPCurlClassTest.php
+++ b/tests/PHPCurlClass/PHPCurlClassTest.php
@@ -3401,12 +3401,6 @@ class PHPCurlClassTest extends \PHPUnit\Framework\TestCase
 
     public function testMemoryLeak()
     {
-        // Skip memory leak test failing for PHP 7.
-        // "Failed asserting that 8192 is less than 1000."
-        if (getenv('CI_PHP_VERSION') === '7.0') {
-            $this->markTestSkipped();
-        }
-
         ob_start();
         echo '[';
         for ($i = 0; $i < 10; $i++) {
diff --git a/tests/check_coding_standards.sh b/tests/check_coding_standards.sh
index 1ffc78b..d4d0ae7 100755
--- a/tests/check_coding_standards.sh
+++ b/tests/check_coding_standards.sh
@@ -93,8 +93,7 @@ if [[ ! -z "${elses}" ]]; then
 fi
 
 # Run PHP_CodeSniffer.
-if   [[ "${CI_PHP_VERSION}" == "7.0" ]]; then :
-elif [[ "${CI_PHP_VERSION}" == "7.1" ]]; then :
+if   [[ "${CI_PHP_VERSION}" == "7.1" ]]; then :
 else
 
     # Determine which phpcs to use.
@@ -121,8 +120,7 @@ else
 fi
 
 # Run PHP-CS-Fixer.
-if   [[ "${CI_PHP_VERSION}" == "7.0" ]]; then :
-elif [[ "${CI_PHP_VERSION}" == "7.1" ]]; then :
+if   [[ "${CI_PHP_VERSION}" == "7.1" ]]; then :
 elif [[ "${CI_PHP_VERSION}" == "7.2" ]]; then :
 elif [[ "${CI_PHP_VERSION}" == "7.3" ]]; then :
 else
diff --git a/tests/ci.sh b/tests/ci.sh
index 726fda8..6b5489c 100755
--- a/tests/ci.sh
+++ b/tests/ci.sh
@@ -57,18 +57,6 @@ phpunit_v10_shim() {
     remove_expectWarning
 }
 
-php_v7_0_shim() {
-    # -protected function setUp(): void
-    # +protected function setUp()
-    find='protected function setUp(): void'
-    replace='protected function setUp()'
-    if sed v < /dev/null 2> /dev/null; then
-        sed -i"" -e"s/${find}/${replace}/" "./PHPCurlClass/PHP"*
-    else
-        sed -i "" -e"s/${find}/${replace}/" "./PHPCurlClass/PHP"*
-    fi
-}
-
 set -x
 
 composer self-update
@@ -132,10 +120,6 @@ elif [[ "${phpunit_version}" == "10."* ]]; then
     phpunit_args=" --display-incomplete --display-skipped --display-deprecations --display-errors --display-notices --display-warnings --fail-on-risky ${extra_args}"
 fi
 
-if [[ "${CI_PHP_VERSION}" == "7.0" ]]; then
-    php_v7_0_shim
-fi
-
 # Run tests.
 "${phpunit_to_use}" --version
 "${phpunit_to_use}" \
diff --git a/tests/dockerfiles/php70/1_build.sh b/tests/dockerfiles/php70/1_build.sh
deleted file mode 100755
index 54f767b..0000000
--- a/tests/dockerfiles/php70/1_build.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-# Build an image.
-set -x
-docker build --tag="php-curl-class/php70" .
diff --git a/tests/dockerfiles/php70/2_start.sh b/tests/dockerfiles/php70/2_start.sh
deleted file mode 100755
index 15d1e50..0000000
--- a/tests/dockerfiles/php70/2_start.sh
+++ /dev/null
@@ -1,15 +0,0 @@
-# Run image to create container.
-
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-set -x
-cd "${SCRIPT_DIR}/../../.."
-project_dir="${PWD}"
-
-docker start "php70" ||
-    docker run \
-        --detach \
-        --interactive \
-        --mount "type=bind,src=${project_dir},dst=/data,readonly=true" \
-        --name="php70" \
-        --tty \
-        "php-curl-class/php70"
diff --git a/tests/dockerfiles/php70/3_test.sh b/tests/dockerfiles/php70/3_test.sh
deleted file mode 100755
index 6ba37b2..0000000
--- a/tests/dockerfiles/php70/3_test.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-# Run tests inside container.
-command=$(cat <<-END
-mkdir --parents "/tmp/php-curl-class" &&
-rsync --delete --exclude=".git" --exclude="vendor" --exclude="composer.lock" --links --recursive "/data/" "/tmp/php-curl-class/" &&
-cd "/tmp/php-curl-class" &&
-export CI_PHP_VERSION="7.0" &&
-(
-    [ ! -f "/tmp/.composer_updated" ] &&
-    composer --no-interaction update &&
-    touch "/tmp/.composer_updated" ||
-    exit 0
-) &&
-bash "tests/run.sh"
-END
-)
-set -x
-docker exec --tty "php70" sh -c "${command}"
diff --git a/tests/dockerfiles/php70/4_stop.sh b/tests/dockerfiles/php70/4_stop.sh
deleted file mode 100755
index 31563f4..0000000
--- a/tests/dockerfiles/php70/4_stop.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-# Stop container.
-set -x
-docker stop "php70"
diff --git a/tests/dockerfiles/php70/Dockerfile b/tests/dockerfiles/php70/Dockerfile
deleted file mode 100644
index 449fb18..0000000
--- a/tests/dockerfiles/php70/Dockerfile
+++ /dev/null
@@ -1,18 +0,0 @@
-FROM php:7.0-cli
-ENV DEBIAN_FRONTEND noninteractive
-
-RUN apt-get --assume-yes --quiet update
-
-RUN apt-get --assume-yes --quiet install git && \
-    apt-get --assume-yes --quiet install libpng-dev && \
-    apt-get --assume-yes --quiet install zip
-
-RUN curl --silent --show-error "https://getcomposer.org/installer" | php && \
-    mv "composer.phar" "/usr/local/bin/composer" && \
-    composer global require --no-interaction "phpunit/phpunit"
-
-RUN docker-php-ext-configure gd && \
-    docker-php-ext-install gd
-
-ENV PATH /root/.composer/vendor/bin:$PATH
-CMD ["bash"]
diff --git a/tests/dockerfiles/php70/attach.sh b/tests/dockerfiles/php70/attach.sh
deleted file mode 100755
index 2a09b80..0000000
--- a/tests/dockerfiles/php70/attach.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-# Attach to running container.
-
-docker exec --interactive --tty "php70" bash -l
diff --git a/tests/dockerfiles/php70/run.sh b/tests/dockerfiles/php70/run.sh
deleted file mode 100755
index ced63cf..0000000
--- a/tests/dockerfiles/php70/run.sh
+++ /dev/null
@@ -1,23 +0,0 @@
-bash "1_build.sh"
-if [[ $? -ne 0 ]]; then
-    echo "Error: Build failed"
-    exit 1
-fi
-
-bash "2_start.sh"
-if [[ $? -ne 0 ]]; then
-    echo "Error: Start failed"
-    exit 1
-fi
-
-bash "3_test.sh"
-if [[ $? -ne 0 ]]; then
-    echo "Error: Test failed"
-    exit 1
-fi
-
-bash "4_stop.sh"
-if [[ $? -ne 0 ]]; then
-    echo "Error: Stop failed"
-    exit 1
-fi
diff --git a/tests/dockerfiles/php70/run_interactive.sh b/tests/dockerfiles/php70/run_interactive.sh
deleted file mode 100755
index a089e63..0000000
--- a/tests/dockerfiles/php70/run_interactive.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-# Run image to create container and attach to it.
-
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-set -x
-cd "${SCRIPT_DIR}/../../.."
-project_dir="${PWD}"
-
-docker run \
-    --interactive \
-    --mount "type=bind,src=${project_dir},dst=/data,readonly=true" \
-    --name="php70" \
-    --rm \
-    --tty \
-    "php-curl-class/php70" /bin/bash
diff --git a/tests/ruleset.xml b/tests/ruleset.xml
index 1886bc4..a52783b 100644
--- a/tests/ruleset.xml
+++ b/tests/ruleset.xml
@@ -13,9 +13,6 @@
 
         <!-- TODO: Remove the following exclusion when ArrayUtil functions not in camel caps format like ArrayUtil::is_array_assoc() are removed. -->
         <exclude name="PSR1.Methods.CamelCapsMethodName.NotCamelCaps" />
-
-        <!-- TODO: Remove the following exclusion when support for PHP 7.0 is dropped. As of PHP 7.1 visibility modifiers are allowed for class constants. -->
-        <exclude name="PSR12.Properties.ConstantVisibility.NotFound" />
     </rule>
 
     <!-- Prohibit long lines in php files. -->
diff --git a/tests/run.sh b/tests/run.sh
index c3472fe..ca4c2ca 100755
--- a/tests/run.sh
+++ b/tests/run.sh
@@ -57,18 +57,6 @@ phpunit_v10_shim() {
     remove_expectWarning
 }
 
-php_v7_0_shim() {
-    # -protected function setUp(): void
-    # +protected function setUp()
-    find='protected function setUp(): void'
-    replace='protected function setUp()'
-    if sed v < /dev/null 2> /dev/null; then
-        sed -i"" -e"s/${find}/${replace}/" "./PHPCurlClass/PHP"*
-    else
-        sed -i "" -e"s/${find}/${replace}/" "./PHPCurlClass/PHP"*
-    fi
-}
-
 set -x
 
 # Use composer's phpunit and phpcs by adding composer bin directory to the path environment variable.
@@ -129,10 +117,6 @@ elif [[ "${phpunit_version}" == "10."* ]]; then
     phpunit_args=" --display-incomplete --display-skipped --display-deprecations --display-errors --display-notices --display-warnings --fail-on-risky ${extra_args}"
 fi
 
-if [[ "${CI_PHP_VERSION}" == "7.0" ]]; then
-    php_v7_0_shim
-fi
-
 # Run tests.
 "${phpunit_to_use}" --version
 "${phpunit_to_use}" \